25477213 has 2 divisors, whose sum is σ = 25477214. Its totient is φ = 25477212.

The previous prime is 25477211. The next prime is 25477217. The reversal of 25477213 is 31277452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19035769 + 6441444 = 4363^2 + 2538^2 .

It is a cyclic number.

It is not a de Polignac number, because 25477213 - 2¹ = 25477211 is a prime.

Together with 25477211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25477211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12738606 + 12738607.

It is an arithmetic number, because the mean of its divisors is an integer number (12738607).

Almost surely, 2^25477213 is an apocalyptic number.

It is an amenable number.

25477213 is a deficient number, since it is larger than the sum of its proper divisors (1).

25477213 is an equidigital number, since it uses as much as digits as its factorization.

25477213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 31.

The square root of 25477213 is about 5047.4957156990. The cubic root of 25477213 is about 294.2505653881.

The spelling of 25477213 in words is "twenty-five million, four hundred seventy-seven thousand, two hundred thirteen".