25013501 has 4 divisors (see below), whose sum is σ = 25118400. Its totient is φ = 24908604.

The previous prime is 25013449. The next prime is 25013543. The reversal of 25013501 is 10531052.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25013501 - 2⁶ = 25013437 is a prime.

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 25013501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25013561) 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, 52091 + ... + 52568.

It is an arithmetic number, because the mean of its divisors is an integer number (6279600).

Almost surely, 2^25013501 is an apocalyptic number.

It is an amenable number.

25013501 is a deficient number, since it is larger than the sum of its proper divisors (104899).

25013501 is a wasteful number, since it uses less digits than its factorization.

25013501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104898.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 25013501 is about 5001.3499177722. The cubic root of 25013501 is about 292.4544005669.

Adding to 25013501 its reverse (10531052), we get a palindrome (35544553).

The spelling of 25013501 in words is "twenty-five million, thirteen thousand, five hundred one".