55749312 has 42 divisors (see below), whose sum is σ = 159796988. Its totient is φ = 18582912.

The previous prime is 55749311. The next prime is 55749313. The reversal of 55749312 is 21394755.

55749312 is a `hidden beast` number, since 557 + 4 + 93 + 12 = 666.

It is an interprime number because it is at equal distance from previous prime (55749311) and next prime (55749313).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (55749311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47818 + ... + 48969.

Almost surely, 2^55749312 is an apocalyptic number.

It is an amenable number.

55749312 is an abundant number, since it is smaller than the sum of its proper divisors (104047676).

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

55749312 is a wasteful number, since it uses less digits than its factorization.

55749312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96805 (or 96792 counting only the distinct ones).

The product of its digits is 37800, while the sum is 36.

The square root of 55749312 is about 7466.5461895042. The cubic root of 55749312 is about 382.0144910121.

The spelling of 55749312 in words is "fifty-five million, seven hundred forty-nine thousand, three hundred twelve".