12453552532 has 6 divisors (see below), whose sum is σ = 21793716938. Its totient is φ = 6226776264.

The previous prime is 12453552523. The next prime is 12453552533. The reversal of 12453552532 is 23525535421.

It can be written as a sum of positive squares in only one way, i.e., 8935164676 + 3518387856 = 94526^2 + 59316^2 .

It is a super-2 number, since 2×12453552532² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12453552491 and 12453552500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12453552533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556694063 + ... + 1556694070.

Almost surely, 2^12453552532 is an apocalyptic number.

It is an amenable number.

12453552532 is a deficient number, since it is larger than the sum of its proper divisors (9340164406).

12453552532 is a wasteful number, since it uses less digits than its factorization.

12453552532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113388137 (or 3113388135 counting only the distinct ones).

The product of its digits is 180000, while the sum is 37.

The spelling of 12453552532 in words is "twelve billion, four hundred fifty-three million, five hundred fifty-two thousand, five hundred thirty-two".