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55469801 = 61909341
BaseRepresentation
bin1101001110011…
…0011011101001
310212101011021002
43103212123221
5103200013201
65300524345
71242325352
oct323463351
9125334232
1055469801
1129347312
12166b06b5
13b651c8a
14751cd29
154d0a76b
hex34e66e9

55469801 has 4 divisors (see below), whose sum is σ = 56379204. Its totient is φ = 54560400.

The previous prime is 55469789. The next prime is 55469809. The reversal of 55469801 is 10896455.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10896455 = 52179291.

It can be written as a sum of positive squares in 2 ways, for example, as 3701776 + 51768025 = 1924^2 + 7195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-55469801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55469809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454610 + ... + 454731.

It is an arithmetic number, because the mean of its divisors is an integer number (14094801).

Almost surely, 255469801 is an apocalyptic number.

It is an amenable number.

55469801 is a deficient number, since it is larger than the sum of its proper divisors (909403).

55469801 is an equidigital number, since it uses as much as digits as its factorization.

55469801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909402.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 55469801 is about 7447.8051129175. The cubic root of 55469801 is about 381.3749841589.

The spelling of 55469801 in words is "fifty-five million, four hundred sixty-nine thousand, eight hundred one".

Divisors: 1 61 909341 55469801