25401071 has 16 divisors (see below), whose sum is σ = 27185760. Its totient is φ = 23694720.

The previous prime is 25401053. The next prime is 25401091. The reversal of 25401071 is 17010452.

It is a cyclic number.

It is not a de Polignac number, because 25401071 - 2¹⁰ = 25400047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25401001) 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, 146741 + ... + 146913.

It is an arithmetic number, because the mean of its divisors is an integer number (1699110).

Almost surely, 2^25401071 is an apocalyptic number.

25401071 is a deficient number, since it is larger than the sum of its proper divisors (1784689).

25401071 is a wasteful number, since it uses less digits than its factorization.

25401071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 25401071 is about 5039.9475195680. The cubic root of 25401071 is about 293.9571373797.

The spelling of 25401071 in words is "twenty-five million, four hundred one thousand, seventy-one".