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56355049 = 75072
BaseRepresentation
bin1101011011111…
…0100011101001
310221001010121001
43112332203221
5103411330144
65331515001
71253003302
oct326764351
9127033531
1056355049
11298a1423
1216a58a61
13b8a1baa
1476ad7a9
154e32bd4
hex35be8e9

56355049 has 3 divisors (see below), whose sum is σ = 56362557. Its totient is φ = 56347542.

The previous prime is 56355041. The next prime is 56355053. The reversal of 56355049 is 94055365.

The square root of 56355049 is 7507.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94055365 = 518811073.

It is not a de Polignac number, because 56355049 - 23 = 56355041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56354999 and 56355017.

It is not an unprimeable number, because it can be changed into a prime (56355041) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3754 + ... + 11260.

It is an arithmetic number, because the mean of its divisors is an integer number (18787519).

Almost surely, 256355049 is an apocalyptic number.

56355049 is the 7507-th square number.

56355049 is the 3754-th centered octagonal number.

It is an amenable number.

56355049 is a deficient number, since it is larger than the sum of its proper divisors (7508).

56355049 is an frugal number, since it uses more digits than its factorization.

56355049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15014 (or 7507 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 37.

The cubic root of 56355049 is about 383.3930865055.

The spelling of 56355049 in words is "fifty-six million, three hundred fifty-five thousand, forty-nine".

Divisors: 1 7507 56355049