55207488 has 56 divisors (see below), whose sum is σ = 166940992. Its totient is φ = 15773184.

The previous prime is 55207463. The next prime is 55207489. The reversal of 55207488 is 88470255.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (55207489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19195 + ... + 21882.

Almost surely, 2^55207488 is an apocalyptic number.

It is an amenable number.

55207488 is an abundant number, since it is smaller than the sum of its proper divisors (111733504).

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

55207488 is a wasteful number, since it uses less digits than its factorization.

55207488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41099 (or 41089 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 39.

The square root of 55207488 is about 7430.1741567745. The cubic root of 55207488 is about 380.7728683915.

The spelling of 55207488 in words is "fifty-five million, two hundred seven thousand, four hundred eighty-eight".