25401345 has 32 divisors (see below), whose sum is σ = 42142464. Its totient is φ = 13056000.

The previous prime is 25401323. The next prime is 25401379. The reversal of 25401345 is 54310452.

It is not a de Polignac number, because 25401345 - 2⁷ = 25401217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63145 + ... + 63545.

It is an arithmetic number, because the mean of its divisors is an integer number (1316952).

Almost surely, 2^25401345 is an apocalyptic number.

It is an amenable number.

25401345 is a deficient number, since it is larger than the sum of its proper divisors (16741119).

25401345 is a wasteful number, since it uses less digits than its factorization.

25401345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 25401345 is about 5039.9747023175. The cubic root of 25401345 is about 293.9581943426.

Adding to 25401345 its reverse (54310452), we get a palindrome (79711797).

The spelling of 25401345 in words is "twenty-five million, four hundred one thousand, three hundred forty-five".