56261530 has 16 divisors (see below), whose sum is σ = 109061064. Its totient is φ = 20773440.

The previous prime is 56261507. The next prime is 56261573. The reversal of 56261530 is 3516265.

It can be written as a sum of positive squares in 4 ways, for example, as 31550689 + 24710841 = 5617^2 + 4971^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216261 + ... + 216520.

Almost surely, 2^56261530 is an apocalyptic number.

56261530 is a deficient number, since it is larger than the sum of its proper divisors (52799534).

56261530 is a wasteful number, since it uses less digits than its factorization.

56261530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432801.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 56261530 is about 7500.7686272808. The cubic root of 56261530 is about 383.1808938090.

Adding to 56261530 its reverse (3516265), we get a palindrome (59777795).

The spelling of 56261530 in words is "fifty-six million, two hundred sixty-one thousand, five hundred thirty".