15538702252 has 6 divisors (see below), whose sum is σ = 27192728948. Its totient is φ = 7769351124.

The previous prime is 15538702247. The next prime is 15538702259. The reversal of 15538702252 is 25220783551.

It is not an unprimeable number, because it can be changed into a prime (15538702259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1942337778 + ... + 1942337785.

Almost surely, 2^15538702252 is an apocalyptic number.

It is an amenable number.

15538702252 is a deficient number, since it is larger than the sum of its proper divisors (11654026696).

15538702252 is a wasteful number, since it uses less digits than its factorization.

15538702252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3884675567 (or 3884675565 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 40.

The spelling of 15538702252 in words is "fifteen billion, five hundred thirty-eight million, seven hundred two thousand, two hundred fifty-two".