25972284481 has 16 divisors (see below), whose sum is σ = 30521171520. Its totient is φ = 21789011520.

The previous prime is 25972284439. The next prime is 25972284491. The reversal of 25972284481 is 18448227952.

It is a cyclic number.

It is not a de Polignac number, because 25972284481 - 2¹⁷ = 25972153409 is a prime.

It is a super-2 number, since 2×25972284481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25972284491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551230 + ... + 596488.

It is an arithmetic number, because the mean of its divisors is an integer number (1907573220).

Almost surely, 2^25972284481 is an apocalyptic number.

It is an amenable number.

25972284481 is a deficient number, since it is larger than the sum of its proper divisors (4548887039).

25972284481 is a wasteful number, since it uses less digits than its factorization.

25972284481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49296.

The product of its digits is 2580480, while the sum is 52.

The spelling of 25972284481 in words is "twenty-five billion, nine hundred seventy-two million, two hundred eighty-four thousand, four hundred eighty-one".