25315451332 has 24 divisors (see below), whose sum is σ = 47167225560. Its totient is φ = 11847329280.

The previous prime is 25315451267. The next prime is 25315451351. The reversal of 25315451332 is 23315451352.

It can be written as a sum of positive squares in 4 ways, for example, as 191933316 + 25123518016 = 13854^2 + 158504^2 .

It is a super-2 number, since 2×25315451332² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1016107 + ... + 1040722.

It is an arithmetic number, because the mean of its divisors is an integer number (1965301065).

Almost surely, 2^25315451332 is an apocalyptic number.

It is an amenable number.

25315451332 is a deficient number, since it is larger than the sum of its proper divisors (21851774228).

25315451332 is a wasteful number, since it uses less digits than its factorization.

25315451332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057031 (or 2057029 counting only the distinct ones).

The product of its digits is 54000, while the sum is 34.

The spelling of 25315451332 in words is "twenty-five billion, three hundred fifteen million, four hundred fifty-one thousand, three hundred thirty-two".