25415513 has 8 divisors (see below), whose sum is σ = 26611200. Its totient is φ = 24241168.

The previous prime is 25415503. The next prime is 25415519. The reversal of 25415513 is 31551452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25415513 - 2¹⁶ = 25349977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25415519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2873 + ... + 7686.

It is an arithmetic number, because the mean of its divisors is an integer number (3326400).

Almost surely, 2^25415513 is an apocalyptic number.

It is an amenable number.

25415513 is a deficient number, since it is larger than the sum of its proper divisors (1195687).

25415513 is a wasteful number, since it uses less digits than its factorization.

25415513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10671.

The product of its digits is 3000, while the sum is 26.

The square root of 25415513 is about 5041.3800689890. The cubic root of 25415513 is about 294.0128374545.

Adding to 25415513 its reverse (31551452), we get a palindrome (56966965).

The spelling of 25415513 in words is "twenty-five million, four hundred fifteen thousand, five hundred thirteen".