56220532 has 12 divisors (see below), whose sum is σ = 98475300. Its totient is φ = 28084736.

The previous prime is 56220529. The next prime is 56220557. The reversal of 56220532 is 23502265.

It can be written as a sum of positive squares in 2 ways, for example, as 39866596 + 16353936 = 6314^2 + 4044^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56220497 and 56220506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 907 + ... + 10642.

It is an arithmetic number, because the mean of its divisors is an integer number (8206275).

Almost surely, 2^56220532 is an apocalyptic number.

It is an amenable number.

56220532 is a deficient number, since it is larger than the sum of its proper divisors (42254768).

56220532 is a wasteful number, since it uses less digits than its factorization.

56220532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12770 (or 12768 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 56220532 is about 7498.0352093065. The cubic root of 56220532 is about 383.0877960462.

Adding to 56220532 its reverse (23502265), we get a palindrome (79722797).

The spelling of 56220532 in words is "fifty-six million, two hundred twenty thousand, five hundred thirty-two".