13537556252 has 24 divisors (see below), whose sum is σ = 25887478512. Its totient is φ = 6143184000.

The previous prime is 13537556251. The next prime is 13537556257. The reversal of 13537556252 is 25265573531.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13537556251) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 229523 + ... + 282410.

It is an arithmetic number, because the mean of its divisors is an integer number (1078644938).

Almost surely, 2^13537556252 is an apocalyptic number.

It is an amenable number.

13537556252 is a deficient number, since it is larger than the sum of its proper divisors (12349922260).

13537556252 is a wasteful number, since it uses less digits than its factorization.

13537556252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512549 (or 512547 counting only the distinct ones).

The product of its digits is 945000, while the sum is 44.

The spelling of 13537556252 in words is "thirteen billion, five hundred thirty-seven million, five hundred fifty-six thousand, two hundred fifty-two".