25401135 has 16 divisors (see below), whose sum is σ = 40713696. Its totient is φ = 13523328.

The previous prime is 25401127. The next prime is 25401149. The reversal of 25401135 is 53110452.

It is not a de Polignac number, because 25401135 - 2³ = 25401127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10237 + ... + 12473.

It is an arithmetic number, because the mean of its divisors is an integer number (2544606).

Almost surely, 2^25401135 is an apocalyptic number.

25401135 is a deficient number, since it is larger than the sum of its proper divisors (15312561).

25401135 is a wasteful number, since it uses less digits than its factorization.

25401135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3002.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 25401135 is about 5039.9538688365. The cubic root of 25401135 is about 293.9573842623.

Adding to 25401135 its reverse (53110452), we get a palindrome (78511587).

The spelling of 25401135 in words is "twenty-five million, four hundred one thousand, one hundred thirty-five".