61501125 has 48 divisors (see below), whose sum is σ = 119081664. Its totient is φ = 28106400.

The previous prime is 61501093. The next prime is 61501159. The reversal of 61501125 is 52110516.

It is not a de Polignac number, because 61501125 - 2⁵ = 61501093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16702 + ... + 20048.

It is an arithmetic number, because the mean of its divisors is an integer number (2480868).

Almost surely, 2^61501125 is an apocalyptic number.

It is an amenable number.

61501125 is a deficient number, since it is larger than the sum of its proper divisors (57580539).

61501125 is a wasteful number, since it uses less digits than its factorization.

61501125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379 (or 3362 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 61501125 is about 7842.2652977313. The cubic root of 61501125 is about 394.7247454773.

The spelling of 61501125 in words is "sixty-one million, five hundred one thousand, one hundred twenty-five".