25315030 has 64 divisors (see below), whose sum is σ = 53242560. Its totient is φ = 8584704.

The previous prime is 25315027. The next prime is 25315033. The reversal of 25315030 is 3051352.

It is an interprime number because it is at equal distance from previous prime (25315027) and next prime (25315033).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 25314989 and 25315007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25315033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91252 + ... + 91528.

It is an arithmetic number, because the mean of its divisors is an integer number (831915).

Almost surely, 2^25315030 is an apocalyptic number.

25315030 is an abundant number, since it is smaller than the sum of its proper divisors (27927530).

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

25315030 is a wasteful number, since it uses less digits than its factorization.

25315030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 25315030 is about 5031.4043765136. The cubic root of 25315030 is about 293.6248550977.

Adding to 25315030 its reverse (3051352), we get a palindrome (28366382).

The spelling of 25315030 in words is "twenty-five million, three hundred fifteen thousand, thirty".