61572825 has 48 divisors (see below), whose sum is σ = 119089600. Its totient is φ = 31104000.

The previous prime is 61572779. The next prime is 61572839. The reversal of 61572825 is 52827516.

It is a happy number.

61572825 is a `hidden beast` number, since 6 + 1 + 572 + 82 + 5 = 666.

It is not a de Polignac number, because 61572825 - 2⁸ = 61572569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61572825.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10425 + ... + 15225.

Almost surely, 2^61572825 is an apocalyptic number.

It is an amenable number.

61572825 is a deficient number, since it is larger than the sum of its proper divisors (57516775).

61572825 is a wasteful number, since it uses less digits than its factorization.

61572825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4839 (or 4828 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 61572825 is about 7846.8353493622. The cubic root of 61572825 is about 394.8780801954.

The spelling of 61572825 in words is "sixty-one million, five hundred seventy-two thousand, eight hundred twenty-five".