55552774 has 16 divisors (see below), whose sum is σ = 87137280. Its totient is φ = 26512200.

The previous prime is 55552771. The next prime is 55552793. The reversal of 55552774 is 47725555.

It is a super-2 number, since 2×55552774² = 6172221398190152, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55552771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27499 + ... + 29449.

It is an arithmetic number, because the mean of its divisors is an integer number (5446080).

Almost surely, 2^55552774 is an apocalyptic number.

55552774 is a deficient number, since it is larger than the sum of its proper divisors (31584506).

55552774 is a wasteful number, since it uses less digits than its factorization.

55552774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2595.

The product of its digits is 245000, while the sum is 40.

The square root of 55552774 is about 7453.3733302445. The cubic root of 55552774 is about 381.5650459056.

The spelling of 55552774 in words is "fifty-five million, five hundred fifty-two thousand, seven hundred seventy-four".