55298208240 has 240 divisors, whose sum is σ = 202760210016. Its totient is φ = 13394534400.

The previous prime is 55298208233. The next prime is 55298208271. The reversal of 55298208240 is 4280289255.

55298208240 is a `hidden beast` number, since 5 + 529 + 8 + 2 + 0 + 82 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

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 47 ways as a sum of consecutive naturals, for example, 13628292 + ... + 13632348.

Almost surely, 2^55298208240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55298208240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101380105008).

55298208240 is an abundant number, since it is smaller than the sum of its proper divisors (147462001776).

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

55298208240 is a wasteful number, since it uses less digits than its factorization.

55298208240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5808 (or 5799 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 45.

The spelling of 55298208240 in words is "fifty-five billion, two hundred ninety-eight million, two hundred eight thousand, two hundred forty".