56222520 has 64 divisors (see below), whose sum is σ = 177552000. Its totient is φ = 14203008.

The previous prime is 56222431. The next prime is 56222531. The reversal of 56222520 is 2522265.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10050 + ... + 14609.

It is an arithmetic number, because the mean of its divisors is an integer number (2774250).

Almost surely, 2^56222520 is an apocalyptic number.

It is an amenable number.

56222520 is an abundant number, since it is smaller than the sum of its proper divisors (121329480).

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

56222520 is a wasteful number, since it uses less digits than its factorization.

56222520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24692 (or 24688 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 56222520 is about 7498.1677761971. The cubic root of 56222520 is about 383.0923114165.

Adding to 56222520 its reverse (2522265), we get a palindrome (58744785).

The spelling of 56222520 in words is "fifty-six million, two hundred twenty-two thousand, five hundred twenty".