55502473488 has 240 divisors, whose sum is σ = 182592563328. Its totient is φ = 14217984000.

The previous prime is 55502473463. The next prime is 55502473489. The reversal of 55502473488 is 88437420555.

It is a super-2 number, since 2×55502473488² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55502473488.

It is not an unprimeable number, because it can be changed into a prime (55502473489) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2958538 + ... + 2977238.

Almost surely, 2^55502473488 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 55502473488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91296281664).

55502473488 is an abundant number, since it is smaller than the sum of its proper divisors (127090089840).

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

55502473488 is a wasteful number, since it uses less digits than its factorization.

55502473488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18814 (or 18797 counting only the distinct ones).

The product of its (nonzero) digits is 5376000, while the sum is 51.

The spelling of 55502473488 in words is "fifty-five billion, five hundred two million, four hundred seventy-three thousand, four hundred eighty-eight".