15252612442 has 4 divisors (see below), whose sum is σ = 22878918666. Its totient is φ = 7626306220.

The previous prime is 15252612433. The next prime is 15252612451. The reversal of 15252612442 is 24421625251.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (15252612433) and next prime (15252612451).

It can be written as a sum of positive squares in only one way, i.e., 10126195641 + 5126416801 = 100629^2 + 71599^2 .

It is a junction number, because it is equal to n+sod(n) for n = 15252612398 and 15252612407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3813153109 + ... + 3813153112.

Almost surely, 2^15252612442 is an apocalyptic number.

15252612442 is a deficient number, since it is larger than the sum of its proper divisors (7626306224).

15252612442 is an equidigital number, since it uses as much as digits as its factorization.

15252612442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7626306223.

The product of its digits is 38400, while the sum is 34.

The spelling of 15252612442 in words is "fifteen billion, two hundred fifty-two million, six hundred twelve thousand, four hundred forty-two".