56995550 has 12 divisors (see below), whose sum is σ = 106011816. Its totient is φ = 22798200.

The previous prime is 56995529. The next prime is 56995567. The reversal of 56995550 is 5559965.

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 5 ways as a sum of consecutive naturals, for example, 569906 + ... + 570005.

It is an arithmetic number, because the mean of its divisors is an integer number (8834318).

Almost surely, 2^56995550 is an apocalyptic number.

56995550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56995550 is a deficient number, since it is larger than the sum of its proper divisors (49016266).

56995550 is a wasteful number, since it uses less digits than its factorization.

56995550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139923 (or 1139918 counting only the distinct ones).

The product of its (nonzero) digits is 303750, while the sum is 44.

The square root of 56995550 is about 7549.5397210691. The cubic root of 56995550 is about 384.8400977618.

The spelling of 56995550 in words is "fifty-six million, nine hundred ninety-five thousand, five hundred fifty".