25977963 has 16 divisors (see below), whose sum is σ = 37892736. Its totient is φ = 15699840.

The previous prime is 25977953. The next prime is 25977967. The reversal of 25977963 is 36977952.

It is not a de Polignac number, because 25977963 - 2⁶ = 25977899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25977967) 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, 13731 + ... + 15507.

It is an arithmetic number, because the mean of its divisors is an integer number (2368296).

Almost surely, 2^25977963 is an apocalyptic number.

25977963 is a deficient number, since it is larger than the sum of its proper divisors (11914773).

25977963 is a wasteful number, since it uses less digits than its factorization.

25977963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234.

The product of its digits is 714420, while the sum is 48.

The square root of 25977963 is about 5096.8581498802. The cubic root of 25977963 is about 296.1658850727.

The spelling of 25977963 in words is "twenty-five million, nine hundred seventy-seven thousand, nine hundred sixty-three".