25258401 has 12 divisors (see below), whose sum is σ = 41696512. Its totient is φ = 14433336.

The previous prime is 25258399. The next prime is 25258403. The reversal of 25258401 is 10485252.

It is a happy number.

25258401 is a `hidden beast` number, since 2 + 5 + 258 + 401 = 666.

It is an interprime number because it is at equal distance from previous prime (25258399) and next prime (25258403).

It is not a de Polignac number, because 25258401 - 2¹ = 25258399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25258403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200401 + ... + 200526.

Almost surely, 2^25258401 is an apocalyptic number.

25258401 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

25258401 is a deficient number, since it is larger than the sum of its proper divisors (16438111).

25258401 is a wasteful number, since it uses less digits than its factorization.

25258401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400940 (or 400937 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 25258401 is about 5025.7736717843. The cubic root of 25258401 is about 293.4057481627.

It can be divided in two parts, 252 and 58401, that added together give a triangular number (58653 = T₃₄₂).

The spelling of 25258401 in words is "twenty-five million, two hundred fifty-eight thousand, four hundred one".