61575625 has 20 divisors (see below), whose sum is σ = 77937552. Its totient is φ = 48626000.

The previous prime is 61575617. The next prime is 61575653. The reversal of 61575625 is 52657516.

It is not a de Polignac number, because 61575625 - 2³ = 61575617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 51282 + ... + 52468.

Almost surely, 2^61575625 is an apocalyptic number.

It is an amenable number.

61575625 is a deficient number, since it is larger than the sum of its proper divisors (16361927).

61575625 is an equidigital number, since it uses as much as digits as its factorization.

61575625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290 (or 1275 counting only the distinct ones).

The product of its digits is 63000, while the sum is 37.

The square root of 61575625 is about 7847.0137632095. The cubic root of 61575625 is about 394.8840657464.

The spelling of 61575625 in words is "sixty-one million, five hundred seventy-five thousand, six hundred twenty-five".