1513864825 has 24 divisors (see below), whose sum is σ = 2049824160. Its totient is φ = 1099929600.

The previous prime is 1513864823. The next prime is 1513864907. The reversal of 1513864825 is 5284683151.

It is not a de Polignac number, because 1513864825 - 2¹ = 1513864823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1513864823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 385522 + ... + 389428.

It is an arithmetic number, because the mean of its divisors is an integer number (85409340).

Almost surely, 2^1513864825 is an apocalyptic number.

It is an amenable number.

1513864825 is a deficient number, since it is larger than the sum of its proper divisors (535959335).

1513864825 is a wasteful number, since it uses less digits than its factorization.

1513864825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337 (or 5332 counting only the distinct ones).

The product of its digits is 230400, while the sum is 43.

The square root of 1513864825 is about 38908.4158634093. The cubic root of 1513864825 is about 1148.2303784899.

The spelling of 1513864825 in words is "one billion, five hundred thirteen million, eight hundred sixty-four thousand, eight hundred twenty-five".