25214522 has 4 divisors (see below), whose sum is σ = 37821786. Its totient is φ = 12607260.

The previous prime is 25214507. The next prime is 25214531. The reversal of 25214522 is 22541252.

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

It can be written as a sum of positive squares in only one way, i.e., 13097161 + 12117361 = 3619^2 + 3481^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6303629 + ... + 6303632.

Almost surely, 2^25214522 is an apocalyptic number.

25214522 is a deficient number, since it is larger than the sum of its proper divisors (12607264).

25214522 is a wasteful number, since it uses less digits than its factorization.

25214522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12607263.

The product of its digits is 1600, while the sum is 23.

The square root of 25214522 is about 5021.4063767036. The cubic root of 25214522 is about 293.2357477847.

Adding to 25214522 its reverse (22541252), we get a palindrome (47755774).

The spelling of 25214522 in words is "twenty-five million, two hundred fourteen thousand, five hundred twenty-two".