54121415502 has 64 divisors (see below), whose sum is σ = 135148197888. Its totient is φ = 14037084000.

The previous prime is 54121415497. The next prime is 54121415519. The reversal of 54121415502 is 20551412145.

54121415502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 54121415502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 234477 + ... + 404007.

It is an arithmetic number, because the mean of its divisors is an integer number (2111690592).

Almost surely, 2^54121415502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54121415502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67574098944).

54121415502 is an abundant number, since it is smaller than the sum of its proper divisors (81026782386).

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

54121415502 is a wasteful number, since it uses less digits than its factorization.

54121415502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170245.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 54121415502 its reverse (20551412145), we get a palindrome (74672827647).

The spelling of 54121415502 in words is "fifty-four billion, one hundred twenty-one million, four hundred fifteen thousand, five hundred two".