55143115524 has 120 divisors (see below), whose sum is σ = 165586196160. Its totient is φ = 15675073344.

The previous prime is 55143115493. The next prime is 55143115537. The reversal of 55143115524 is 42551134155.

55143115524 is a `hidden beast` number, since 5 + 5 + 14 + 3 + 115 + 524 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 385087 + ... + 508505.

It is an arithmetic number, because the mean of its divisors is an integer number (1379884968).

Almost surely, 2^55143115524 is an apocalyptic number.

55143115524 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55143115524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82793098080).

55143115524 is an abundant number, since it is smaller than the sum of its proper divisors (110443080636).

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

55143115524 is a wasteful number, since it uses less digits than its factorization.

55143115524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123639 (or 123628 counting only the distinct ones).

The product of its digits is 60000, while the sum is 36.

Adding to 55143115524 its reverse (42551134155), we get a palindrome (97694249679).

The spelling of 55143115524 in words is "fifty-five billion, one hundred forty-three million, one hundred fifteen thousand, five hundred twenty-four".