25228280523 has 8 divisors (see below), whose sum is σ = 33765608448. Its totient is φ = 16754903144.

The previous prime is 25228280513. The next prime is 25228280587. The reversal of 25228280523 is 32508282252.

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 25228280523 - 2¹⁷ = 25228149451 is a prime.

It is a super-2 number, since 2×25228280523² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25228280513) 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, 15986715 + ... + 15988292.

It is an arithmetic number, because the mean of its divisors is an integer number (4220701056).

Almost surely, 2^25228280523 is an apocalyptic number.

25228280523 is a deficient number, since it is larger than the sum of its proper divisors (8537327925).

25228280523 is a wasteful number, since it uses less digits than its factorization.

25228280523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31975273.

The product of its (nonzero) digits is 153600, while the sum is 39.

The spelling of 25228280523 in words is "twenty-five billion, two hundred twenty-eight million, two hundred eighty thousand, five hundred twenty-three".