61257260 has 12 divisors (see below), whose sum is σ = 128640288. Its totient is φ = 24502896.

The previous prime is 61257253. The next prime is 61257269. The reversal of 61257260 is 6275216.

It is not an unprimeable number, because it can be changed into a prime (61257269) 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, 1531412 + ... + 1531451.

It is an arithmetic number, because the mean of its divisors is an integer number (10720024).

Almost surely, 2^61257260 is an apocalyptic number.

It is an amenable number.

61257260 is an abundant number, since it is smaller than the sum of its proper divisors (67383028).

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

61257260 is a wasteful number, since it uses less digits than its factorization.

61257260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062872 (or 3062870 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 61257260 is about 7826.7017318919. The cubic root of 61257260 is about 394.2023319392.

The spelling of 61257260 in words is "sixty-one million, two hundred fifty-seven thousand, two hundred sixty".