15051351540 has 96 divisors (see below), whose sum is σ = 44897086080. Its totient is φ = 3754377216.

The previous prime is 15051351521. The next prime is 15051351569. The reversal of 15051351540 is 4515315051.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 15051351498 and 15051351507.

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, 120996 + ... + 211524.

It is an arithmetic number, because the mean of its divisors is an integer number (467677980).

Almost surely, 2^15051351540 is an apocalyptic number.

15051351540 is a gapful number since it is divisible by the number (10) 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 15051351540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22448543040).

15051351540 is an abundant number, since it is smaller than the sum of its proper divisors (29845734540).

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

15051351540 is a wasteful number, since it uses less digits than its factorization.

15051351540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90721 (or 90719 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 30.

Adding to 15051351540 its reverse (4515315051), we get a palindrome (19566666591).

The spelling of 15051351540 in words is "fifteen billion, fifty-one million, three hundred fifty-one thousand, five hundred forty".