25222699 has 2 divisors, whose sum is σ = 25222700. Its totient is φ = 25222698.

The previous prime is 25222669. The next prime is 25222723. The reversal of 25222699 is 99622252.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25222699 - 2⁹ = 25222187 is a prime.

It is not a weakly prime, because it can be changed into another prime (25222649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12611349 + 12611350.

It is an arithmetic number, because the mean of its divisors is an integer number (12611350).

Almost surely, 2^25222699 is an apocalyptic number.

25222699 is a deficient number, since it is larger than the sum of its proper divisors (1).

25222699 is an equidigital number, since it uses as much as digits as its factorization.

25222699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 37.

The square root of 25222699 is about 5022.2205248276. The cubic root of 25222699 is about 293.2674428737.

It can be divided in two parts, 25222 and 699, that added together give a square (25921 = 161²).

The spelling of 25222699 in words is "twenty-five million, two hundred twenty-two thousand, six hundred ninety-nine".