56510722 has 4 divisors (see below), whose sum is σ = 84766086. Its totient is φ = 28255360.

The previous prime is 56510717. The next prime is 56510743. The reversal of 56510722 is 22701565.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22701565 = 5 ⋅4540313.

It can be written as a sum of positive squares in only one way, i.e., 56115081 + 395641 = 7491^2 + 629^2 .

It is a super-2 number, since 2×56510722² = 6386923401922568, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14127679 + ... + 14127682.

Almost surely, 2^56510722 is an apocalyptic number.

56510722 is a deficient number, since it is larger than the sum of its proper divisors (28255364).

56510722 is a wasteful number, since it uses less digits than its factorization.

56510722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28255363.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 56510722 is about 7517.3613721837. The cubic root of 56510722 is about 383.7457853378.

The spelling of 56510722 in words is "fifty-six million, five hundred ten thousand, seven hundred twenty-two".