55000402398 has 24 divisors (see below), whose sum is σ = 119192954088. Its totient is φ = 18329557392.

The previous prime is 55000402397. The next prime is 55000402403. The reversal of 55000402398 is 89320400055.

55000402398 is a `hidden beast` number, since 5 + 500 + 0 + 40 + 23 + 98 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55000402397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 238465 + ... + 408492.

It is an arithmetic number, because the mean of its divisors is an integer number (4966373087).

Almost surely, 2^55000402398 is an apocalyptic number.

55000402398 is an abundant number, since it is smaller than the sum of its proper divisors (64192551690).

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

55000402398 is a wasteful number, since it uses less digits than its factorization.

55000402398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651688 (or 651685 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The spelling of 55000402398 in words is "fifty-five billion, four hundred two thousand, three hundred ninety-eight".