25977213 has 8 divisors (see below), whose sum is σ = 38484800. Its totient is φ = 17318124.

The previous prime is 25977209. The next prime is 25977223. The reversal of 25977213 is 31277952.

It is not a de Polignac number, because 25977213 - 2² = 25977209 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 (25977223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481033 + ... + 481086.

It is an arithmetic number, because the mean of its divisors is an integer number (4810600).

Almost surely, 2^25977213 is an apocalyptic number.

It is an amenable number.

25977213 is a deficient number, since it is larger than the sum of its proper divisors (12507587).

25977213 is an equidigital number, since it uses as much as digits as its factorization.

25977213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962128 (or 962122 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 25977213 is about 5096.7845746117. The cubic root of 25977213 is about 296.1630348806.

The spelling of 25977213 in words is "twenty-five million, nine hundred seventy-seven thousand, two hundred thirteen".