25312321352 has 8 divisors (see below), whose sum is σ = 47460602550. Its totient is φ = 12656160672.

The previous prime is 25312321351. The next prime is 25312321373.

25312321352 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 13196035876 + 12116285476 = 114874^2 + 110074^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×25312321352² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25312321351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1582020077 + ... + 1582020092.

Almost surely, 2^25312321352 is an apocalyptic number.

It is an amenable number.

25312321352 is a deficient number, since it is larger than the sum of its proper divisors (22148281198).

25312321352 is a wasteful number, since it uses less digits than its factorization.

25312321352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164040175 (or 3164040171 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The spelling of 25312321352 in words is "twenty-five billion, three hundred twelve million, three hundred twenty-one thousand, three hundred fifty-two".