25382031 has 4 divisors (see below), whose sum is σ = 33842712. Its totient is φ = 16921352.

The previous prime is 25382023. The next prime is 25382053. The reversal of 25382031 is 13028352.

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

It is a cyclic number.

It is not a de Polignac number, because 25382031 - 2³ = 25382023 is a prime.

It is a super-2 number, since 2×25382031² = 1288494995369922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25381992 and 25382010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25382011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4230336 + ... + 4230341.

It is an arithmetic number, because the mean of its divisors is an integer number (8460678).

Almost surely, 2^25382031 is an apocalyptic number.

25382031 is a deficient number, since it is larger than the sum of its proper divisors (8460681).

25382031 is an equidigital number, since it uses as much as digits as its factorization.

25382031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8460680.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 25382031 is about 5038.0582569081. The cubic root of 25382031 is about 293.8836714103.

The spelling of 25382031 in words is "twenty-five million, three hundred eighty-two thousand, thirty-one".