55770925 has 12 divisors (see below), whose sum is σ = 79035616. Its totient is φ = 38242800.

The previous prime is 55770917. The next prime is 55770941. The reversal of 55770925 is 52907755.

It is not a de Polignac number, because 55770925 - 2³ = 55770917 is a prime.

It is a super-2 number, since 2×55770925² = 6220792150711250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159171 + ... + 159520.

Almost surely, 2^55770925 is an apocalyptic number.

It is an amenable number.

55770925 is a deficient number, since it is larger than the sum of its proper divisors (23264691).

55770925 is a wasteful number, since it uses less digits than its factorization.

55770925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318708 (or 318703 counting only the distinct ones).

The product of its (nonzero) digits is 110250, while the sum is 40.

The square root of 55770925 is about 7467.9933717164. The cubic root of 55770925 is about 382.0638513370.

The spelling of 55770925 in words is "fifty-five million, seven hundred seventy thousand, nine hundred twenty-five".