25387401 has 16 divisors (see below), whose sum is σ = 38373440. Its totient is φ = 14800320.

The previous prime is 25387387. The next prime is 25387421. The reversal of 25387401 is 10478352.

It is not a de Polignac number, because 25387401 - 2¹⁰ = 25386377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25387421) 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, 16390 + ... + 17871.

It is an arithmetic number, because the mean of its divisors is an integer number (2398340).

Almost surely, 2^25387401 is an apocalyptic number.

It is an amenable number.

25387401 is a deficient number, since it is larger than the sum of its proper divisors (12986039).

25387401 is a wasteful number, since it uses less digits than its factorization.

25387401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34296.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 25387401 is about 5038.5911721433. The cubic root of 25387401 is about 293.9043953105.

It can be divided in two parts, 2 and 5387401, that added together give a triangular number (5387403 = T₃₂₈₂).

The spelling of 25387401 in words is "twenty-five million, three hundred eighty-seven thousand, four hundred one".