25261983 has 32 divisors (see below), whose sum is σ = 40504320. Its totient is φ = 15500160.

The previous prime is 25261969. The next prime is 25261997. The reversal of 25261983 is 38916252.

It is an interprime number because it is at equal distance from previous prime (25261969) and next prime (25261997).

It is not a de Polignac number, because 25261983 - 2⁴ = 25261967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25261283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20988 + ... + 22158.

It is an arithmetic number, because the mean of its divisors is an integer number (1265760).

Almost surely, 2^25261983 is an apocalyptic number.

25261983 is a deficient number, since it is larger than the sum of its proper divisors (15242337).

25261983 is a wasteful number, since it uses less digits than its factorization.

25261983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244 (or 1238 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 25261983 is about 5026.1300221940. The cubic root of 25261983 is about 293.4196172078.

It can be divided in two parts, 25261 and 983, that added together give a square (26244 = 162²).

The spelling of 25261983 in words is "twenty-five million, two hundred sixty-one thousand, nine hundred eighty-three".