55576976 has 160 divisors (see below), whose sum is σ = 145824000. Its totient is φ = 20321280.

The previous prime is 55576949. The next prime is 55576987. The reversal of 55576976 is 67967555.

It is a happy number.

It is a super-2 number, since 2×55576976² = 6177600522609152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1355516 + ... + 1355556.

It is an arithmetic number, because the mean of its divisors is an integer number (911400).

Almost surely, 2^55576976 is an apocalyptic number.

55576976 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55576976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72912000).

55576976 is an abundant number, since it is smaller than the sum of its proper divisors (90247024).

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

55576976 is a wasteful number, since it uses less digits than its factorization.

55576976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 82 counting only the distinct ones).

The product of its digits is 1984500, while the sum is 50.

The square root of 55576976 is about 7454.9967136143. The cubic root of 55576976 is about 381.6204484586.

The spelling of 55576976 in words is "fifty-five million, five hundred seventy-six thousand, nine hundred seventy-six".