56662320 has 240 divisors, whose sum is σ = 209129472. Its totient is φ = 12579840.

The previous prime is 56662301. The next prime is 56662339. The reversal of 56662320 is 2326665.

It is an interprime number because it is at equal distance from previous prime (56662301) and next prime (56662339).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 446097 + ... + 446223.

Almost surely, 2^56662320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56662320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104564736).

56662320 is an abundant number, since it is smaller than the sum of its proper divisors (152467152).

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

56662320 is a wasteful number, since it uses less digits than its factorization.

56662320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 161 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 56662320 is about 7527.4378111015. The cubic root of 56662320 is about 384.0886297157.

Adding to 56662320 its reverse (2326665), we get a palindrome (58988985).

The spelling of 56662320 in words is "fifty-six million, six hundred sixty-two thousand, three hundred twenty".