55798130 has 16 divisors (see below), whose sum is σ = 102887064. Its totient is φ = 21774720.

The previous prime is 55798123. The next prime is 55798139. The reversal of 55798130 is 3189755.

It can be written as a sum of positive squares in 4 ways, for example, as 22401289 + 33396841 = 4733^2 + 5779^2 .

It is a super-2 number, since 2×55798130² = 6226862622993800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55798139) 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, 67637 + ... + 68456.

Almost surely, 2^55798130 is an apocalyptic number.

55798130 is a deficient number, since it is larger than the sum of its proper divisors (47088934).

55798130 is a wasteful number, since it uses less digits than its factorization.

55798130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136141.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 55798130 is about 7469.8145893991. The cubic root of 55798130 is about 382.1259646901.

The spelling of 55798130 in words is "fifty-five million, seven hundred ninety-eight thousand, one hundred thirty".