61536612 has 48 divisors (see below), whose sum is σ = 151703552. Its totient is φ = 19383840.

The previous prime is 61536599. The next prime is 61536659. The reversal of 61536612 is 21663516.

It is a self number, because there is not a number n which added to its sum of digits gives 61536612.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14073 + ... + 17919.

Almost surely, 2^61536612 is an apocalyptic number.

61536612 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

61536612 is an abundant number, since it is smaller than the sum of its proper divisors (90166940).

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

61536612 is a wasteful number, since it uses less digits than its factorization.

61536612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3928 (or 3926 counting only the distinct ones).

The product of its digits is 6480, while the sum is 30.

The square root of 61536612 is about 7844.5275192328. The cubic root of 61536612 is about 394.8006514259.

The spelling of 61536612 in words is "sixty-one million, five hundred thirty-six thousand, six hundred twelve".