61570625 has 40 divisors (see below), whose sum is σ = 82473600. Its totient is φ = 45864000.

The previous prime is 61570591. The next prime is 61570631. The reversal of 61570625 is 52607516.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-61570625 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61570591 and 61570600.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 779336 + ... + 779414.

It is an arithmetic number, because the mean of its divisors is an integer number (2061840).

Almost surely, 2^61570625 is an apocalyptic number.

It is an amenable number.

61570625 is a deficient number, since it is larger than the sum of its proper divisors (20902975).

61570625 is an equidigital number, since it uses as much as digits as its factorization.

61570625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 61570625 is about 7846.6951642077. The cubic root of 61570625 is about 394.8733771351.

The spelling of 61570625 in words is "sixty-one million, five hundred seventy thousand, six hundred twenty-five".