61902925 has 24 divisors (see below), whose sum is σ = 89528000. Its totient is φ = 42441840.

The previous prime is 61902917. The next prime is 61902937. The reversal of 61902925 is 52920916.

It is not a de Polignac number, because 61902925 - 2³ = 61902917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4966 + ... + 12184.

Almost surely, 2^61902925 is an apocalyptic number.

It is an amenable number.

61902925 is a deficient number, since it is larger than the sum of its proper divisors (27625075).

61902925 is an equidigital number, since it uses as much as digits as its factorization.

61902925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7250 (or 7231 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 61902925 is about 7867.8411905681. The cubic root of 61902925 is about 395.5824872980.

Subtracting from 61902925 its reverse (52920916), we obtain a square (8982009 = 2997²).

The spelling of 61902925 in words is "sixty-one million, nine hundred two thousand, nine hundred twenty-five".