65761488 has 60 divisors (see below), whose sum is σ = 198203460. Its totient is φ = 20233728.

The previous prime is 65761453. The next prime is 65761517. The reversal of 65761488 is 88416756.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6594624 + 59166864 = 2568^2 + 7692^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15693 + ... + 19436.

It is an arithmetic number, because the mean of its divisors is an integer number (3303391).

Almost surely, 2^65761488 is an apocalyptic number.

It is an amenable number.

65761488 is an abundant number, since it is smaller than the sum of its proper divisors (132441972).

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

65761488 is a wasteful number, since it uses less digits than its factorization.

65761488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35156 (or 35147 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 65761488 is about 8109.3457196003. The cubic root of 65761488 is about 403.6366042454.

The spelling of 65761488 in words is "sixty-five million, seven hundred sixty-one thousand, four hundred eighty-eight".