25122993 has 16 divisors (see below), whose sum is σ = 38353920. Its totient is φ = 14329296.

The previous prime is 25122971. The next prime is 25123001. The reversal of 25122993 is 39922152.

It is not a de Polignac number, because 25122993 - 2¹⁰ = 25121969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25122913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18388 + ... + 19706.

It is an arithmetic number, because the mean of its divisors is an integer number (2397120).

Almost surely, 2^25122993 is an apocalyptic number.

It is an amenable number.

25122993 is a deficient number, since it is larger than the sum of its proper divisors (13230927).

25122993 is a wasteful number, since it uses less digits than its factorization.

25122993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2236.

The product of its digits is 9720, while the sum is 33.

The square root of 25122993 is about 5012.2842098189. The cubic root of 25122993 is about 292.8805012274.

The spelling of 25122993 in words is "twenty-five million, one hundred twenty-two thousand, nine hundred ninety-three".