2505515700 has 36 divisors (see below), whose sum is σ = 7249292960. Its totient is φ = 668137440.

The previous prime is 2505515681. The next prime is 2505515707. The reversal of 2505515700 is 75155052.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505515707) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4175560 + ... + 4176159.

Almost surely, 2^2505515700 is an apocalyptic number.

2505515700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2505515700 is an abundant number, since it is smaller than the sum of its proper divisors (4743777260).

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

2505515700 is a wasteful number, since it uses less digits than its factorization.

2505515700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8351736 (or 8351729 counting only the distinct ones).

The product of its (nonzero) digits is 8750, while the sum is 30.

The square root of 2505515700 is about 50055.1266105681. The cubic root of 2505515700 is about 1358.2062026961.

It can be divided in two parts, 25055 and 15700, that added together give a triangular number (40755 = T₂₈₅).

The spelling of 2505515700 in words is "two billion, five hundred five million, five hundred fifteen thousand, seven hundred".