76561552 has 20 divisors (see below), whose sum is σ = 149163196. Its totient is φ = 38067840.

The previous prime is 76561531. The next prime is 76561559. The reversal of 76561552 is 25516567.

It can be written as a sum of positive squares in 2 ways, for example, as 26378496 + 50183056 = 5136^2 + 7084^2 .

It is not an unprimeable number, because it can be changed into a prime (76561559) 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, 10323 + ... + 16114.

Almost surely, 2^76561552 is an apocalyptic number.

It is an amenable number.

76561552 is a deficient number, since it is larger than the sum of its proper divisors (72601644).

76561552 is a wasteful number, since it uses less digits than its factorization.

76561552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26626 (or 26620 counting only the distinct ones).

The product of its digits is 63000, while the sum is 37.

The square root of 76561552 is about 8749.9458284037. The cubic root of 76561552 is about 424.6230604793.

The spelling of 76561552 in words is "seventy-six million, five hundred sixty-one thousand, five hundred fifty-two".