25222877 has 2 divisors, whose sum is σ = 25222878. Its totient is φ = 25222876.

The previous prime is 25222807. The next prime is 25222891. The reversal of 25222877 is 77822252.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16048036 + 9174841 = 4006^2 + 3029^2 .

It is a cyclic number.

It is not a de Polignac number, because 25222877 - 2²⁰ = 24174301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25222807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12611438 + 12611439.

It is an arithmetic number, because the mean of its divisors is an integer number (12611439).

Almost surely, 2^25222877 is an apocalyptic number.

It is an amenable number.

25222877 is a deficient number, since it is larger than the sum of its proper divisors (1).

25222877 is an equidigital number, since it uses as much as digits as its factorization.

25222877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31360, while the sum is 35.

The square root of 25222877 is about 5022.2382460413. The cubic root of 25222877 is about 293.2681327481.

The spelling of 25222877 in words is "twenty-five million, two hundred twenty-two thousand, eight hundred seventy-seven".