55098225 has 180 divisors, whose sum is σ = 131795136. Its totient is φ = 22239360.

The previous prime is 55098223. The next prime is 55098229. The reversal of 55098225 is 52289055.

55098225 is a `hidden beast` number, since 550 + 9 + 82 + 25 = 666.

It is not a de Polignac number, because 55098225 - 2¹ = 55098223 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55098225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55098221) by changing a digit.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 2395564 + ... + 2395586.

Almost surely, 2^55098225 is an apocalyptic number.

It is an amenable number.

55098225 is an abundant number, since it is smaller than the sum of its proper divisors (76696911).

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

55098225 is a wasteful number, since it uses less digits than its factorization.

55098225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 51 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 55098225 is about 7422.8178611630. The cubic root of 55098225 is about 380.5215023509.

The spelling of 55098225 in words is "fifty-five million, ninety-eight thousand, two hundred twenty-five".