55890260 has 24 divisors (see below), whose sum is σ = 118980456. Its totient is φ = 22049280.

The previous prime is 55890251. The next prime is 55890283. The reversal of 55890260 is 6209855.

It can be written as a sum of positive squares in 4 ways, for example, as 21362884 + 34527376 = 4622^2 + 5876^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 55890260.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17681 + ... + 20600.

It is an arithmetic number, because the mean of its divisors is an integer number (4957519).

Almost surely, 2^55890260 is an apocalyptic number.

It is an amenable number.

55890260 is an abundant number, since it is smaller than the sum of its proper divisors (63090196).

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

55890260 is a wasteful number, since it uses less digits than its factorization.

55890260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38363 (or 38361 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 55890260 is about 7475.9788656737. The cubic root of 55890260 is about 382.3361623360.

The spelling of 55890260 in words is "fifty-five million, eight hundred ninety thousand, two hundred sixty".