61172625 has 16 divisors (see below), whose sum is σ = 101791872. Its totient is φ = 32625200.

The previous prime is 61172603. The next prime is 61172633. The reversal of 61172625 is 52627116.

It is not a de Polignac number, because 61172625 - 2⁵ = 61172593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61172592 and 61172601.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81189 + ... + 81938.

It is an arithmetic number, because the mean of its divisors is an integer number (6361992).

Almost surely, 2^61172625 is an apocalyptic number.

It is an amenable number.

61172625 is a deficient number, since it is larger than the sum of its proper divisors (40619247).

61172625 is a wasteful number, since it uses less digits than its factorization.

61172625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163145 (or 163135 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 61172625 is about 7821.2930516635. The cubic root of 61172625 is about 394.0207007255.

The spelling of 61172625 in words is "sixty-one million, one hundred seventy-two thousand, six hundred twenty-five".