61594725 has 12 divisors (see below), whose sum is σ = 101836736. Its totient is φ = 32850480.

The previous prime is 61594681. The next prime is 61594727. The reversal of 61594725 is 52749516.

It is not a de Polignac number, because 61594725 - 2⁷ = 61594597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61594727) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 410557 + ... + 410706.

Almost surely, 2^61594725 is an apocalyptic number.

It is an amenable number.

61594725 is a deficient number, since it is larger than the sum of its proper divisors (40242011).

61594725 is a wasteful number, since it uses less digits than its factorization.

61594725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821276 (or 821271 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 61594725 is about 7848.2306923280. The cubic root of 61594725 is about 394.9248909158.

The spelling of 61594725 in words is "sixty-one million, five hundred ninety-four thousand, seven hundred twenty-five".