61788525 has 24 divisors (see below), whose sum is σ = 102386304. Its totient is φ = 32880000.

The previous prime is 61788521. The next prime is 61788533. The reversal of 61788525 is 52588716.

It is not a de Polignac number, because 61788525 - 2² = 61788521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61788521) 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, 55777 + ... + 56873.

It is an arithmetic number, because the mean of its divisors is an integer number (4266096).

Almost surely, 2^61788525 is an apocalyptic number.

It is an amenable number.

61788525 is a deficient number, since it is larger than the sum of its proper divisors (40597779).

61788525 is a wasteful number, since it uses less digits than its factorization.

61788525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861 (or 1856 counting only the distinct ones).

The product of its digits is 134400, while the sum is 42.

The square root of 61788525 is about 7860.5677275881. The cubic root of 61788525 is about 395.3386509855.

The spelling of 61788525 in words is "sixty-one million, seven hundred eighty-eight thousand, five hundred twenty-five".