25248431 has 6 divisors (see below), whose sum is σ = 27340200. Its totient is φ = 23306088.

The previous prime is 25248427. The next prime is 25248463. The reversal of 25248431 is 13484252.

It is a happy number.

It is not a de Polignac number, because 25248431 - 2² = 25248427 is a prime.

It is a super-2 number, since 2×25248431² = 1274966535923522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25248394 and 25248403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25248491) 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 5 ways as a sum of consecutive naturals, for example, 74531 + ... + 74868.

It is an arithmetic number, because the mean of its divisors is an integer number (4556700).

Almost surely, 2^25248431 is an apocalyptic number.

25248431 is a deficient number, since it is larger than the sum of its proper divisors (2091769).

25248431 is a wasteful number, since it uses less digits than its factorization.

25248431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149425 (or 149412 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 25248431 is about 5024.7816867999. The cubic root of 25248431 is about 293.3671386946.

The spelling of 25248431 in words is "twenty-five million, two hundred forty-eight thousand, four hundred thirty-one".