55790455 has 16 divisors (see below), whose sum is σ = 76633920. Its totient is φ = 38195712.

The previous prime is 55790443. The next prime is 55790489. The reversal of 55790455 is 55409755.

It is a cyclic number.

It is not a de Polignac number, because 55790455 - 2¹⁵ = 55757687 is a prime.

It is a super-2 number, since 2×55790455² = 6225149738214050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42367 + ... + 43663.

It is an arithmetic number, because the mean of its divisors is an integer number (4789620).

Almost surely, 2^55790455 is an apocalyptic number.

55790455 is a deficient number, since it is larger than the sum of its proper divisors (20843465).

55790455 is a wasteful number, since it uses less digits than its factorization.

55790455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538.

The product of its (nonzero) digits is 157500, while the sum is 40.

The square root of 55790455 is about 7469.3008374278. The cubic root of 55790455 is about 382.1084434861.

The spelling of 55790455 in words is "fifty-five million, seven hundred ninety thousand, four hundred fifty-five".