55098612 has 18 divisors (see below), whose sum is σ = 139277138. Its totient is φ = 18366192.

The previous prime is 55098611. The next prime is 55098623. The reversal of 55098612 is 21689055.

It is a happy number.

55098612 is a `hidden beast` number, since 550 + 98 + 6 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30536676 + 24561936 = 5526^2 + 4956^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1530517 = 55098612 / (5 + 5 + 0 + 9 + 8 + 6 + 1 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55098611) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 765223 + ... + 765294.

Almost surely, 2^55098612 is an apocalyptic number.

It is an amenable number.

55098612 is an abundant number, since it is smaller than the sum of its proper divisors (84178526).

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

55098612 is a wasteful number, since it uses less digits than its factorization.

55098612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530527 (or 1530522 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 55098612 is about 7422.8439293845. The cubic root of 55098612 is about 380.5223932536.

The spelling of 55098612 in words is "fifty-five million, ninety-eight thousand, six hundred twelve".