25222537 has 8 divisors (see below), whose sum is σ = 25833600. Its totient is φ = 24618720.

The previous prime is 25222529. The next prime is 25222573. The reversal of 25222537 is 73522252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25222537 - 2³ = 25222529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25262537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5589 + ... + 9037.

It is an arithmetic number, because the mean of its divisors is an integer number (3229200).

Almost surely, 2^25222537 is an apocalyptic number.

It is an amenable number.

25222537 is a deficient number, since it is larger than the sum of its proper divisors (611063).

25222537 is a wasteful number, since it uses less digits than its factorization.

25222537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623.

The product of its digits is 8400, while the sum is 28.

The square root of 25222537 is about 5022.2043964777. The cubic root of 25222537 is about 293.2668150077.

Adding to 25222537 its reverse (73522252), we get a palindrome (98744789).

The spelling of 25222537 in words is "twenty-five million, two hundred twenty-two thousand, five hundred thirty-seven".