55529480 has 64 divisors (see below), whose sum is σ = 133539840. Its totient is φ = 20708352.

The previous prime is 55529477. The next prime is 55529491. The reversal of 55529480 is 8492555.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86039 + ... + 86681.

It is an arithmetic number, because the mean of its divisors is an integer number (2086560).

Almost surely, 2^55529480 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 55529480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66769920).

55529480 is an abundant number, since it is smaller than the sum of its proper divisors (78010360).

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

55529480 is a wasteful number, since it uses less digits than its factorization.

55529480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 55529480 is about 7451.8105182566. The cubic root of 55529480 is about 381.5117067224.

The spelling of 55529480 in words is "fifty-five million, five hundred twenty-nine thousand, four hundred eighty".