56668368 has 20 divisors (see below), whose sum is σ = 146393408. Its totient is φ = 18889440.

The previous prime is 56668351. The next prime is 56668369. The reversal of 56668368 is 86386665.

It is a super-2 number, since 2×56668368² = 6422607863566848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1180591 = 56668368 / (5 + 6 + 6 + 6 + 8 + 3 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56668369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590248 + ... + 590343.

Almost surely, 2^56668368 is an apocalyptic number.

It is an amenable number.

56668368 is an abundant number, since it is smaller than the sum of its proper divisors (89725040).

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

56668368 is a wasteful number, since it uses less digits than its factorization.

56668368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180602 (or 1180596 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The square root of 56668368 is about 7527.8395307020. The cubic root of 56668368 is about 384.1022947956.

The spelling of 56668368 in words is "fifty-six million, six hundred sixty-eight thousand, three hundred sixty-eight".