15005255100 has 144 divisors (see below), whose sum is σ = 47408215680. Its totient is φ = 3634092800.

The previous prime is 15005255093. The next prime is 15005255101. The reversal of 15005255100 is 155250051.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15005255101) 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, 5321491 + ... + 5324309.

It is an arithmetic number, because the mean of its divisors is an integer number (329223720).

Almost surely, 2^15005255100 is an apocalyptic number.

15005255100 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 15005255100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23704107840).

15005255100 is an abundant number, since it is smaller than the sum of its proper divisors (32402960580).

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

15005255100 is a wasteful number, since it uses less digits than its factorization.

15005255100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460 (or 4453 counting only the distinct ones).

The product of its (nonzero) digits is 1250, while the sum is 24.

The spelling of 15005255100 in words is "fifteen billion, five million, two hundred fifty-five thousand, one hundred".