55767996 has 36 divisors (see below), whose sum is σ = 142760800. Its totient is φ = 18353088.

The previous prime is 55767979. The next prime is 55768019. The reversal of 55767996 is 69976755.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×55767996² = 6220138755712032, 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 in 11 ways as a sum of consecutive naturals, for example, 6961 + ... + 12648.

Almost surely, 2^55767996 is an apocalyptic number.

It is an amenable number.

55767996 is an abundant number, since it is smaller than the sum of its proper divisors (86992804).

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

55767996 is a wasteful number, since it uses less digits than its factorization.

55767996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19698 (or 19693 counting only the distinct ones).

The product of its digits is 3572100, while the sum is 54.

The square root of 55767996 is about 7467.7972655931. The cubic root of 55767996 is about 382.0571627586.

The spelling of 55767996 in words is "fifty-five million, seven hundred sixty-seven thousand, nine hundred ninety-six".