25514321532 has 48 divisors (see below), whose sum is σ = 71619152640. Its totient is φ = 6906131712.

The previous prime is 25514321519. The next prime is 25514321563. The reversal of 25514321532 is 23512341552.

It is a junction number, because it is equal to n+sod(n) for n = 25514321493 and 25514321502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7991613 + ... + 7994804.

It is an arithmetic number, because the mean of its divisors is an integer number (1492065680).

Almost surely, 2^25514321532 is an apocalyptic number.

It is an amenable number.

25514321532 is an abundant number, since it is smaller than the sum of its proper divisors (46104831108).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25514321532 is a wasteful number, since it uses less digits than its factorization.

25514321532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15986450 (or 15986448 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The spelling of 25514321532 in words is "twenty-five billion, five hundred fourteen million, three hundred twenty-one thousand, five hundred thirty-two".