55504755 has 12 divisors (see below), whose sum is σ = 96208320. Its totient is φ = 29602512.

The previous prime is 55504751. The next prime is 55504769. The reversal of 55504755 is 55740555.

It is a happy number.

It is not a de Polignac number, because 55504755 - 2² = 55504751 is a prime.

It is a super-2 number, since 2×55504755² = 6161555655220050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55504751) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 616675 + ... + 616764.

It is an arithmetic number, because the mean of its divisors is an integer number (8017360).

Almost surely, 2^55504755 is an apocalyptic number.

55504755 is a deficient number, since it is larger than the sum of its proper divisors (40703565).

55504755 is a wasteful number, since it uses less digits than its factorization.

55504755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233450 (or 1233447 counting only the distinct ones).

The product of its (nonzero) digits is 87500, while the sum is 36.

The square root of 55504755 is about 7450.1513407447. The cubic root of 55504755 is about 381.4550744776.

The spelling of 55504755 in words is "fifty-five million, five hundred four thousand, seven hundred fifty-five".