25222085527 has 8 divisors (see below), whose sum is σ = 25358454000. Its totient is φ = 25086448072.

The previous prime is 25222085503. The next prime is 25222085531. The reversal of 25222085527 is 72558022252.

It is a happy number.

It is not a de Polignac number, because 25222085527 - 2¹¹ = 25222083479 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25222085527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25222085557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7643724 + ... + 7647022.

It is an arithmetic number, because the mean of its divisors is an integer number (3169806750).

Almost surely, 2^25222085527 is an apocalyptic number.

25222085527 is a deficient number, since it is larger than the sum of its proper divisors (136368473).

25222085527 is an frugal number, since it uses more digits than its factorization.

25222085527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3890 (or 3496 counting only the distinct ones).

The product of its (nonzero) digits is 224000, while the sum is 40.

The spelling of 25222085527 in words is "twenty-five billion, two hundred twenty-two million, eighty-five thousand, five hundred twenty-seven".