56775552 has 32 divisors (see below), whose sum is σ = 150811080. Its totient is φ = 18925056.

The previous prime is 56775541. The next prime is 56775559. The reversal of 56775552 is 25557765.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56775559) 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, 73543 + ... + 74310.

Almost surely, 2^56775552 is an apocalyptic number.

It is an amenable number.

56775552 is an abundant number, since it is smaller than the sum of its proper divisors (94035528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56775552 is a wasteful number, since it uses less digits than its factorization.

56775552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147870 (or 147858 counting only the distinct ones).

The product of its digits is 367500, while the sum is 42.

The square root of 56775552 is about 7534.9553416062. The cubic root of 56775552 is about 384.3443092423.

The spelling of 56775552 in words is "fifty-six million, seven hundred seventy-five thousand, five hundred fifty-two".