25372641 has 12 divisors (see below), whose sum is σ = 39353712. Its totient is φ = 14498568.

The previous prime is 25372603. The next prime is 25372661. The reversal of 25372641 is 14627352.

It is not a de Polignac number, because 25372641 - 2¹⁴ = 25356257 is a prime.

It is a super-2 number, since 2×25372641² = 1287541822629762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25372599 and 25372608.

It is not an unprimeable number, because it can be changed into a prime (25372661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86155 + ... + 86448.

It is an arithmetic number, because the mean of its divisors is an integer number (3279476).

Almost surely, 2^25372641 is an apocalyptic number.

25372641 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25372641 is a deficient number, since it is larger than the sum of its proper divisors (13981071).

25372641 is a wasteful number, since it uses less digits than its factorization.

25372641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172620 (or 172613 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 25372641 is about 5037.1262640518. The cubic root of 25372641 is about 293.8474265035.

Adding to 25372641 its reverse (14627352), we get a palindrome (39999993).

The spelling of 25372641 in words is "twenty-five million, three hundred seventy-two thousand, six hundred forty-one".