15040505500 has 24 divisors (see below), whose sum is σ = 32848465104. Its totient is φ = 6016202000.

The previous prime is 15040505461. The next prime is 15040505503. The reversal of 15040505500 is 550504051.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15040505503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15040006 + ... + 15041005.

It is an arithmetic number, because the mean of its divisors is an integer number (1368686046).

Almost surely, 2^15040505500 is an apocalyptic number.

15040505500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15040505500 is an abundant number, since it is smaller than the sum of its proper divisors (17807959604).

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

15040505500 is a wasteful number, since it uses less digits than its factorization.

15040505500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30081030 (or 30081018 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The spelling of 15040505500 in words is "fifteen billion, forty million, five hundred five thousand, five hundred".