25235031 has 4 divisors (see below), whose sum is σ = 33646712. Its totient is φ = 16823352.

The previous prime is 25235011. The next prime is 25235051. The reversal of 25235031 is 13053252.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (25235011) and next prime (25235051).

It is not a de Polignac number, because 25235031 - 2¹⁰ = 25234007 is a prime.

It is a super-2 number, since 2×25235031² = 1273613579141922, 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 = 25234989 and 25235007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25235011) 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 3 ways as a sum of consecutive naturals, for example, 4205836 + ... + 4205841.

It is an arithmetic number, because the mean of its divisors is an integer number (8411678).

Almost surely, 2^25235031 is an apocalyptic number.

25235031 is a deficient number, since it is larger than the sum of its proper divisors (8411681).

25235031 is an equidigital number, since it uses as much as digits as its factorization.

25235031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8411680.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 25235031 is about 5023.4481185735. The cubic root of 25235031 is about 293.3152303165.

Adding to 25235031 its reverse (13053252), we get a palindrome (38288283).

The spelling of 25235031 in words is "twenty-five million, two hundred thirty-five thousand, thirty-one".