25425413 has 4 divisors (see below), whose sum is σ = 27381228. Its totient is φ = 23469600.

The previous prime is 25425403. The next prime is 25425451. The reversal of 25425413 is 31452452.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8958049 + 16467364 = 2993^2 + 4058^2 .

It is a cyclic number.

It is not a de Polignac number, because 25425413 - 2¹⁰ = 25424389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25425403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 977888 + ... + 977913.

It is an arithmetic number, because the mean of its divisors is an integer number (6845307).

Almost surely, 2^25425413 is an apocalyptic number.

It is an amenable number.

25425413 is a deficient number, since it is larger than the sum of its proper divisors (1955815).

25425413 is a wasteful number, since it uses less digits than its factorization.

25425413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955814.

The product of its digits is 4800, while the sum is 26.

The square root of 25425413 is about 5042.3618473886. The cubic root of 25425413 is about 294.0510077016.

Adding to 25425413 its reverse (31452452), we get a palindrome (56877865).

The spelling of 25425413 in words is "twenty-five million, four hundred twenty-five thousand, four hundred thirteen".