55796980 has 12 divisors (see below), whose sum is σ = 117173700. Its totient is φ = 22318784.

The previous prime is 55796971. The next prime is 55796987. The reversal of 55796980 is 8969755.

It can be written as a sum of positive squares in 2 ways, for example, as 9909904 + 45887076 = 3148^2 + 6774^2 .

It is a super-2 number, since 2×55796980² = 6226605954240800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55796987) 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, 1394905 + ... + 1394944.

It is an arithmetic number, because the mean of its divisors is an integer number (9764475).

Almost surely, 2^55796980 is an apocalyptic number.

It is an amenable number.

55796980 is an abundant number, since it is smaller than the sum of its proper divisors (61376720).

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

55796980 is a wasteful number, since it uses less digits than its factorization.

55796980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2789858 (or 2789856 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 49.

The square root of 55796980 is about 7469.7376125270. The cubic root of 55796980 is about 382.1233394654.

The spelling of 55796980 in words is "fifty-five million, seven hundred ninety-six thousand, nine hundred eighty".