55515260 has 24 divisors (see below), whose sum is σ = 116723376. Its totient is φ = 22179200.

The previous prime is 55515253. The next prime is 55515269. The reversal of 55515260 is 6251555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55515269) 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, 28064 + ... + 29976.

It is an arithmetic number, because the mean of its divisors is an integer number (4863474).

Almost surely, 2^55515260 is an apocalyptic number.

It is an amenable number.

55515260 is an abundant number, since it is smaller than the sum of its proper divisors (61208116).

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

55515260 is a wasteful number, since it uses less digits than its factorization.

55515260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373 (or 3371 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 55515260 is about 7450.8563266245. The cubic root of 55515260 is about 381.4791380782.

The spelling of 55515260 in words is "fifty-five million, five hundred fifteen thousand, two hundred sixty".