55073180428 has 48 divisors (see below), whose sum is σ = 110658530304. Its totient is φ = 23493214080.

The previous prime is 55073180411. The next prime is 55073180471. The reversal of 55073180428 is 82408137055.

It is a super-3 number, since 3×55073180428³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9732576 + ... + 9738232.

It is an arithmetic number, because the mean of its divisors is an integer number (2305386048).

Almost surely, 2^55073180428 is an apocalyptic number.

It is an amenable number.

55073180428 is an abundant number, since it is smaller than the sum of its proper divisors (55585349876).

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

55073180428 is a wasteful number, since it uses less digits than its factorization.

55073180428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7222 (or 7220 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 43.

The spelling of 55073180428 in words is "fifty-five billion, seventy-three million, one hundred eighty thousand, four hundred twenty-eight".