2515505500 has 24 divisors (see below), whose sum is σ = 5493865104. Its totient is φ = 1006202000.

The previous prime is 2515505491. The next prime is 2515505519. The reversal of 2515505500 is 55055152.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2515006 + ... + 2516005.

It is an arithmetic number, because the mean of its divisors is an integer number (228911046).

Almost surely, 2^2515505500 is an apocalyptic number.

2515505500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2515505500 is an abundant number, since it is smaller than the sum of its proper divisors (2978359604).

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

2515505500 is a wasteful number, since it uses less digits than its factorization.

2515505500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5031030 (or 5031018 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 28.

The square root of 2515505500 is about 50154.8153221602. The cubic root of 2515505500 is about 1360.0089207892.

The spelling of 2515505500 in words is "two billion, five hundred fifteen million, five hundred five thousand, five hundred".