25916401 has 16 divisors (see below), whose sum is σ = 31363200. Its totient is φ = 20942208.

The previous prime is 25916393. The next prime is 25916419. The reversal of 25916401 is 10461952.

It is not a de Polignac number, because 25916401 - 2³ = 25916393 is a prime.

It is a pancake number, because a pancake can be divided into 25916401 parts by 7199 straight cuts.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25916401.

It is not an unprimeable number, because it can be changed into a prime (25914401) 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, 7245 + ... + 10213.

It is an arithmetic number, because the mean of its divisors is an integer number (1960200).

Almost surely, 2^25916401 is an apocalyptic number.

It is an amenable number.

25916401 is a deficient number, since it is larger than the sum of its proper divisors (5446799).

25916401 is a wasteful number, since it uses less digits than its factorization.

25916401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3048.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 25916401 is about 5090.8153570916. The cubic root of 25916401 is about 295.9317509133.

The spelling of 25916401 in words is "twenty-five million, nine hundred sixteen thousand, four hundred one".