25323701481 has 24 divisors (see below), whose sum is σ = 39511495296. Its totient is φ = 15536711520.

The previous prime is 25323701369. The next prime is 25323701497. The reversal of 25323701481 is 18410732352.

25323701481 is a `hidden beast` number, since 2 + 532 + 37 + 0 + 14 + 81 = 666.

It is not a de Polignac number, because 25323701481 - 2¹⁴ = 25323685097 is a prime.

It is a super-2 number, since 2×25323701481² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25323705481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288225 + ... + 365678.

It is an arithmetic number, because the mean of its divisors is an integer number (1646312304).

Almost surely, 2^25323701481 is an apocalyptic number.

It is an amenable number.

25323701481 is a deficient number, since it is larger than the sum of its proper divisors (14187793815).

25323701481 is a wasteful number, since it uses less digits than its factorization.

25323701481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654253 (or 654250 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 25323701481 in words is "twenty-five billion, three hundred twenty-three million, seven hundred one thousand, four hundred eighty-one".