55751516 has 12 divisors (see below), whose sum is σ = 100712640. Its totient is φ = 26976480.

The previous prime is 55751497. The next prime is 55751533. The reversal of 55751516 is 61515755.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224681 + ... + 224928.

It is an arithmetic number, because the mean of its divisors is an integer number (8392720).

Almost surely, 2^55751516 is an apocalyptic number.

It is an amenable number.

55751516 is a deficient number, since it is larger than the sum of its proper divisors (44961124).

55751516 is a wasteful number, since it uses less digits than its factorization.

55751516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449644 (or 449642 counting only the distinct ones).

The product of its digits is 26250, while the sum is 35.

The square root of 55751516 is about 7466.6937797127. The cubic root of 55751516 is about 382.0195251480.

The spelling of 55751516 in words is "fifty-five million, seven hundred fifty-one thousand, five hundred sixteen".