61572680 has 32 divisors (see below), whose sum is σ = 149196600. Its totient is φ = 22734336.

The previous prime is 61572671. The next prime is 61572701. The reversal of 61572680 is 8627516.

It can be written as a sum of positive squares in 4 ways, for example, as 51294244 + 10278436 = 7162^2 + 3206^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61572680.

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, 58685 + ... + 59724.

Almost surely, 2^61572680 is an apocalyptic number.

It is an amenable number.

61572680 is an abundant number, since it is smaller than the sum of its proper divisors (87623920).

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

61572680 is a wasteful number, since it uses less digits than its factorization.

61572680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118433 (or 118429 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 61572680 is about 7846.8261099632. The cubic root of 61572680 is about 394.8777702244.

The spelling of 61572680 in words is "sixty-one million, five hundred seventy-two thousand, six hundred eighty".