2505155812 has 12 divisors (see below), whose sum is σ = 4458328560. Its totient is φ = 1231347656.

The previous prime is 2505155777. The next prime is 2505155813. The reversal of 2505155812 is 2185515052.

It is not an unprimeable number, because it can be changed into a prime (2505155813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5307298 + ... + 5307769.

It is an arithmetic number, because the mean of its divisors is an integer number (371527380).

Almost surely, 2^2505155812 is an apocalyptic number.

It is an amenable number.

2505155812 is a deficient number, since it is larger than the sum of its proper divisors (1953172748).

2505155812 is a wasteful number, since it uses less digits than its factorization.

2505155812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10615130 (or 10615128 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 34.

The square root of 2505155812 is about 50051.5315649781. The cubic root of 2505155812 is about 1358.1411694418.

The spelling of 2505155812 in words is "two billion, five hundred five million, one hundred fifty-five thousand, eight hundred twelve".