65561152 has 28 divisors (see below), whose sum is σ = 131754880. Its totient is φ = 32363136.

The previous prime is 65561143. The next prime is 65561189. The reversal of 65561152 is 25116556.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428 + ... + 11539.

Almost surely, 2^65561152 is an apocalyptic number.

It is an amenable number.

65561152 is an abundant number, since it is smaller than the sum of its proper divisors (66193728).

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

65561152 is a wasteful number, since it uses less digits than its factorization.

65561152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13058 (or 13048 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

The square root of 65561152 is about 8096.9841299091. The cubic root of 65561152 is about 403.2263073874.

The spelling of 65561152 in words is "sixty-five million, five hundred sixty-one thousand, one hundred fifty-two".