1525115564 has 12 divisors (see below), whose sum is σ = 3050231184. Its totient is φ = 653620944.

The previous prime is 1525115561. The next prime is 1525115567. The reversal of 1525115564 is 4655115251.

It is an interprime number because it is at equal distance from previous prime (1525115561) and next prime (1525115567).

1525115564 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1525115561) 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, 27234179 + ... + 27234234.

It is an arithmetic number, because the mean of its divisors is an integer number (254185932).

Almost surely, 2^1525115564 is an apocalyptic number.

1525115564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1525115564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1525115564 is a wasteful number, since it uses less digits than its factorization.

1525115564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54468424 (or 54468422 counting only the distinct ones).

The product of its digits is 30000, while the sum is 35.

The square root of 1525115564 is about 39052.7279969018. The cubic root of 1525115564 is about 1151.0678333604.

The spelling of 1525115564 in words is "one billion, five hundred twenty-five million, one hundred fifteen thousand, five hundred sixty-four".