55386270 has 24 divisors (see below), whose sum is σ = 144004536. Its totient is φ = 14769648.

The previous prime is 55386269. The next prime is 55386281. The reversal of 55386270 is 7268355.

55386270 is a `hidden beast` number, since 5 + 5 + 386 + 270 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 307612 + ... + 307791.

It is an arithmetic number, because the mean of its divisors is an integer number (6000189).

Almost surely, 2^55386270 is an apocalyptic number.

55386270 is an abundant number, since it is smaller than the sum of its proper divisors (88618266).

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

55386270 is a wasteful number, since it uses less digits than its factorization.

55386270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615416 (or 615413 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 55386270 is about 7442.1952406531. The cubic root of 55386270 is about 381.1834526865.

The spelling of 55386270 in words is "fifty-five million, three hundred eighty-six thousand, two hundred seventy".