25201312 has 12 divisors (see below), whose sum is σ = 49615146. Its totient is φ = 12600640.

The previous prime is 25201303. The next prime is 25201321. The reversal of 25201312 is 21310252.

It is an interprime number because it is at equal distance from previous prime (25201303) and next prime (25201321).

It can be written as a sum of positive squares in only one way, i.e., 17338896 + 7862416 = 4164^2 + 2804^2 .

It is a super-2 number, since 2×25201312² = 1270212253042688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393739 + ... + 393802.

Almost surely, 2^25201312 is an apocalyptic number.

It is an amenable number.

25201312 is a deficient number, since it is larger than the sum of its proper divisors (24413834).

25201312 is an equidigital number, since it uses as much as digits as its factorization.

25201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787551 (or 787543 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 25201312 is about 5020.0908358316. The cubic root of 25201312 is about 293.1845296692.

Adding to 25201312 its reverse (21310252), we get a palindrome (46511564).

The spelling of 25201312 in words is "twenty-five million, two hundred one thousand, three hundred twelve".