61880560 has 40 divisors (see below), whose sum is σ = 164426976. Its totient is φ = 21216000.

The previous prime is 61880551. The next prime is 61880563. The reversal of 61880560 is 6508816.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61880563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54691 + ... + 55810.

Almost surely, 2^61880560 is an apocalyptic number.

It is an amenable number.

61880560 is an abundant number, since it is smaller than the sum of its proper divisors (102546416).

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

61880560 is a wasteful number, since it uses less digits than its factorization.

61880560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110521 (or 110515 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 61880560 is about 7866.4197701369. The cubic root of 61880560 is about 395.5348413641.

The spelling of 61880560 in words is "sixty-one million, eight hundred eighty thousand, five hundred sixty".