25151313 has 32 divisors (see below), whose sum is σ = 39191040. Its totient is φ = 14178560.

The previous prime is 25151297. The next prime is 25151317. The reversal of 25151313 is 31315152.

It is not a de Polignac number, because 25151313 - 2⁴ = 25151297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25151313.

It is not an unprimeable number, because it can be changed into a prime (25151317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59818 + ... + 60236.

It is an arithmetic number, because the mean of its divisors is an integer number (1224720).

Almost surely, 2^25151313 is an apocalyptic number.

It is an amenable number.

25151313 is a deficient number, since it is larger than the sum of its proper divisors (14039727).

25151313 is a wasteful number, since it uses less digits than its factorization.

25151313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its digits is 450, while the sum is 21.

The square root of 25151313 is about 5015.1084734031. The cubic root of 25151313 is about 292.9905101626.

Adding to 25151313 its reverse (31315152), we get a palindrome (56466465).

It can be divided in two parts, 2515 and 1313, that added together give a triangular number (3828 = T₈₇).

The spelling of 25151313 in words is "twenty-five million, one hundred fifty-one thousand, three hundred thirteen".