61947525 has 24 divisors (see below), whose sum is σ = 102805920. Its totient is φ = 32914240.

The previous prime is 61947503. The next prime is 61947527. The reversal of 61947525 is 52574916.

It is not a de Polignac number, because 61947525 - 2⁶ = 61947461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61947527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20566 + ... + 23384.

It is an arithmetic number, because the mean of its divisors is an integer number (4283580).

Almost surely, 2^61947525 is an apocalyptic number.

It is an amenable number.

61947525 is a deficient number, since it is larger than the sum of its proper divisors (40858395).

61947525 is a wasteful number, since it uses less digits than its factorization.

61947525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125 (or 3120 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 61947525 is about 7870.6750028190. The cubic root of 61947525 is about 395.6774679658.

The spelling of 61947525 in words is "sixty-one million, nine hundred forty-seven thousand, five hundred twenty-five".