56121356 has 6 divisors (see below), whose sum is σ = 98212380. Its totient is φ = 28060676.

The previous prime is 56121349. The next prime is 56121361. The reversal of 56121356 is 65312165.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7015166 + ... + 7015173.

It is an arithmetic number, because the mean of its divisors is an integer number (16368730).

Almost surely, 2^56121356 is an apocalyptic number.

It is an amenable number.

56121356 is a deficient number, since it is larger than the sum of its proper divisors (42091024).

56121356 is a wasteful number, since it uses less digits than its factorization.

56121356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14030343 (or 14030341 counting only the distinct ones).

The product of its digits is 5400, while the sum is 29.

The square root of 56121356 is about 7491.4188242282. The cubic root of 56121356 is about 382.8624010618.

The spelling of 56121356 in words is "fifty-six million, one hundred twenty-one thousand, three hundred fifty-six".