56091512 has 8 divisors (see below), whose sum is σ = 105171600. Its totient is φ = 28045752.

The previous prime is 56091467. The next prime is 56091527. The reversal of 56091512 is 21519065.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×56091512² = 6292515436892288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3505712 + ... + 3505727.

It is an arithmetic number, because the mean of its divisors is an integer number (13146450).

Almost surely, 2^56091512 is an apocalyptic number.

It is an amenable number.

56091512 is a deficient number, since it is larger than the sum of its proper divisors (49080088).

56091512 is a wasteful number, since it uses less digits than its factorization.

56091512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7011445 (or 7011441 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 56091512 is about 7489.4266803274. The cubic root of 56091512 is about 382.7945233274.

The spelling of 56091512 in words is "fifty-six million, ninety-one thousand, five hundred twelve".