55526680 has 64 divisors (see below), whose sum is σ = 137803680. Its totient is φ = 19968000.

The previous prime is 55526663. The next prime is 55526689. The reversal of 55526680 is 8662555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55526689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42030 + ... + 43330.

Almost surely, 2^55526680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55526680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68901840).

55526680 is an abundant number, since it is smaller than the sum of its proper divisors (82277000).

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

55526680 is a wasteful number, since it uses less digits than its factorization.

55526680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1416 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 55526680 is about 7451.6226420827. The cubic root of 55526680 is about 381.5052942082.

The spelling of 55526680 in words is "fifty-five million, five hundred twenty-six thousand, six hundred eighty".