2501500525 has 6 divisors (see below), whose sum is σ = 3101860682. Its totient is φ = 2001200400.

The previous prime is 2501500523. The next prime is 2501500541. The reversal of 2501500525 is 5250051052.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 21261321 + 2480239204 = 4611^2 + 49802^2 .

It is not a de Polignac number, because 2501500525 - 2¹ = 2501500523 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 100060021 = 2501500525 / (2 + 5 + 0 + 1 + 5 + 0 + 0 + 5 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2501500525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2501500523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50029986 + ... + 50030035.

Almost surely, 2^2501500525 is an apocalyptic number.

2501500525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2501500525 is a deficient number, since it is larger than the sum of its proper divisors (600360157).

2501500525 is a wasteful number, since it uses less digits than its factorization.

2501500525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100060031 (or 100060026 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 2501500525 is about 50015.0029991002. The cubic root of 2501500525 is about 1357.4802907555.

Adding to 2501500525 its reverse (5250051052), we get a palindrome (7751551577).

The spelling of 2501500525 in words is "two billion, five hundred one million, five hundred thousand, five hundred twenty-five".