61279488 has 54 divisors (see below), whose sum is σ = 176690514. Its totient is φ = 20425728.

The previous prime is 61279457. The next prime is 61279489. The reversal of 61279488 is 88497216.

It can be written as a sum of positive squares in only one way, i.e., 59721984 + 1557504 = 7728^2 + 1248^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61279489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10995 + ... + 15602.

Almost surely, 2^61279488 is an apocalyptic number.

It is an amenable number.

61279488 is an abundant number, since it is smaller than the sum of its proper divisors (115411026).

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

61279488 is a wasteful number, since it uses less digits than its factorization.

61279488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26619 (or 26602 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 61279488 is about 7828.1216137717. The cubic root of 61279488 is about 394.2500066682.

The spelling of 61279488 in words is "sixty-one million, two hundred seventy-nine thousand, four hundred eighty-eight".