61612568 has 8 divisors (see below), whose sum is σ = 115523580. Its totient is φ = 30806280.

The previous prime is 61612547. The next prime is 61612591. The reversal of 61612568 is 86521616.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×61612568² = 7592217071109248, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3850778 + ... + 3850793.

Almost surely, 2^61612568 is an apocalyptic number.

It is an amenable number.

61612568 is a deficient number, since it is larger than the sum of its proper divisors (53911012).

61612568 is a wasteful number, since it uses less digits than its factorization.

61612568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7701577 (or 7701573 counting only the distinct ones).

The product of its digits is 17280, while the sum is 35.

The square root of 61612568 is about 7849.3673630427. The cubic root of 61612568 is about 394.9630216946.

The spelling of 61612568 in words is "sixty-one million, six hundred twelve thousand, five hundred sixty-eight".