25315004 has 24 divisors (see below), whose sum is σ = 52047408. Its totient is φ = 10621440.

The previous prime is 25315001. The next prime is 25315007. The reversal of 25315004 is 40051352.

It is an interprime number because it is at equal distance from previous prime (25315001) and next prime (25315007).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25315001) 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 7 ways as a sum of consecutive naturals, for example, 21557 + ... + 22700.

It is an arithmetic number, because the mean of its divisors is an integer number (2168642).

Almost surely, 2^25315004 is an apocalyptic number.

It is an amenable number.

25315004 is an abundant number, since it is smaller than the sum of its proper divisors (26732404).

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

25315004 is a wasteful number, since it uses less digits than its factorization.

25315004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44285 (or 44283 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 25315004 is about 5031.4017927413. The cubic root of 25315004 is about 293.6247545744.

Adding to 25315004 its reverse (40051352), we get a palindrome (65366356).

The spelling of 25315004 in words is "twenty-five million, three hundred fifteen thousand, four".