56212320 has 48 divisors (see below), whose sum is σ = 177070320. Its totient is φ = 14989824.

The previous prime is 56212301. The next prime is 56212327. The reversal of 56212320 is 2321265.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56212327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58075 + ... + 59034.

It is an arithmetic number, because the mean of its divisors is an integer number (3688965).

Almost surely, 2^56212320 is an apocalyptic number.

It is an amenable number.

56212320 is an abundant number, since it is smaller than the sum of its proper divisors (120858000).

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

56212320 is a wasteful number, since it uses less digits than its factorization.

56212320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117127 (or 117119 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 56212320 is about 7497.4875791828. The cubic root of 56212320 is about 383.0691428955.

Adding to 56212320 its reverse (2321265), we get a palindrome (58533585).

The spelling of 56212320 in words is "fifty-six million, two hundred twelve thousand, three hundred twenty".