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55692457 = 353157769
BaseRepresentation
bin1101010001110…
…0110010101001
310212210110200121
43110130302221
5103224124312
65305403241
71244243452
oct324346251
9125713617
1055692457
1129489627
1216799521
13b6cc422
14757a129
154d51707
hex351cca9

55692457 has 4 divisors (see below), whose sum is σ = 55850580. Its totient is φ = 55534336.

The previous prime is 55692443. The next prime is 55692463. The reversal of 55692457 is 75429655.

55692457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34999056 + 20693401 = 5916^2 + 4549^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55692457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55692757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78532 + ... + 79237.

It is an arithmetic number, because the mean of its divisors is an integer number (13962645).

Almost surely, 255692457 is an apocalyptic number.

It is an amenable number.

55692457 is a deficient number, since it is larger than the sum of its proper divisors (158123).

55692457 is a wasteful number, since it uses less digits than its factorization.

55692457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158122.

The product of its digits is 378000, while the sum is 43.

The square root of 55692457 is about 7462.7379024055. The cubic root of 55692457 is about 381.8845831520.

The spelling of 55692457 in words is "fifty-five million, six hundred ninety-two thousand, four hundred fifty-seven".

Divisors: 1 353 157769 55692457