25158263 has 4 divisors (see below), whose sum is σ = 27093528. Its totient is φ = 23223000.

The previous prime is 25158257. The next prime is 25158277. The reversal of 25158263 is 36285152.

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 25158263 - 2¹⁸ = 24896119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25158293) 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, 967613 + ... + 967638.

It is an arithmetic number, because the mean of its divisors is an integer number (6773382).

Almost surely, 2^25158263 is an apocalyptic number.

25158263 is a deficient number, since it is larger than the sum of its proper divisors (1935265).

25158263 is a wasteful number, since it uses less digits than its factorization.

25158263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935264.

The product of its digits is 14400, while the sum is 32.

The square root of 25158263 is about 5015.8013317914. The cubic root of 25158263 is about 293.0174947911.

The spelling of 25158263 in words is "twenty-five million, one hundred fifty-eight thousand, two hundred sixty-three".