55798470 has 160 divisors (see below), whose sum is σ = 184903488. Its totient is φ = 11757312.

The previous prime is 55798441. The next prime is 55798507. The reversal of 55798470 is 7489755.

55798470 is a `hidden beast` number, since 5 + 579 + 8 + 4 + 70 = 666.

It is a super-2 number, since 2×55798470² = 6226938508681800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 73332 + ... + 74088.

Almost surely, 2^55798470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55798470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92451744).

55798470 is an abundant number, since it is smaller than the sum of its proper divisors (129105018).

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

55798470 is a wasteful number, since it uses less digits than its factorization.

55798470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796 (or 787 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 55798470 is about 7469.8373476268. The cubic root of 55798470 is about 382.1267408365.

The spelling of 55798470 in words is "fifty-five million, seven hundred ninety-eight thousand, four hundred seventy".