61125560 has 16 divisors (see below), whose sum is σ = 137532600. Its totient is φ = 24450208.

The previous prime is 61125511. The next prime is 61125563. The reversal of 61125560 is 6552116.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61125563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 764030 + ... + 764109.

Almost surely, 2^61125560 is an apocalyptic number.

It is an amenable number.

61125560 is an abundant number, since it is smaller than the sum of its proper divisors (76407040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61125560 is a wasteful number, since it uses less digits than its factorization.

61125560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1528150 (or 1528146 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 61125560 is about 7818.2836991248. The cubic root of 61125560 is about 393.9196242377.

Adding to 61125560 its reverse (6552116), we get a palindrome (67677676).

The spelling of 61125560 in words is "sixty-one million, one hundred twenty-five thousand, five hundred sixty".