25401725 has 6 divisors (see below), whose sum is σ = 31498170. Its totient is φ = 20321360.

The previous prime is 25401713. The next prime is 25401751. The reversal of 25401725 is 52710452.

It can be written as a sum of positive squares in 3 ways, for example, as 2256004 + 23145721 = 1502^2 + 4811^2 .

It is not a de Polignac number, because 25401725 - 2⁶ = 25401661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25401694 and 25401703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 508010 + ... + 508059.

It is an arithmetic number, because the mean of its divisors is an integer number (5249695).

Almost surely, 2^25401725 is an apocalyptic number.

25401725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25401725 is a deficient number, since it is larger than the sum of its proper divisors (6096445).

25401725 is a wasteful number, since it uses less digits than its factorization.

25401725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016079 (or 1016074 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 25401725 is about 5040.0124007784. The cubic root of 25401725 is about 293.9596601909.

The spelling of 25401725 in words is "twenty-five million, four hundred one thousand, seven hundred twenty-five".