56420522 has 4 divisors (see below), whose sum is σ = 84630786. Its totient is φ = 28210260.

The previous prime is 56420513. The next prime is 56420537. The reversal of 56420522 is 22502465.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22502465 = 5 ⋅4500493.

It can be written as a sum of positive squares in only one way, i.e., 29474041 + 26946481 = 5429^2 + 5191^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56420491 and 56420500.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14105129 + ... + 14105132.

Almost surely, 2^56420522 is an apocalyptic number.

56420522 is a deficient number, since it is larger than the sum of its proper divisors (28210264).

56420522 is a wasteful number, since it uses less digits than its factorization.

56420522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28210263.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 56420522 is about 7511.3595307374. The cubic root of 56420522 is about 383.5415037351.

Adding to 56420522 its reverse (22502465), we get a palindrome (78922987).

The spelling of 56420522 in words is "fifty-six million, four hundred twenty thousand, five hundred twenty-two".