15212003252 has 12 divisors (see below), whose sum is σ = 26622115716. Its totient is φ = 7605684480.

The previous prime is 15212003249. The next prime is 15212003297. The reversal of 15212003252 is 25230021251.

It can be written as a sum of positive squares in 2 ways, for example, as 5499112336 + 9712890916 = 74156^2 + 98554^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53252 + ... + 182372.

It is an arithmetic number, because the mean of its divisors is an integer number (2218509643).

Almost surely, 2^15212003252 is an apocalyptic number.

It is an amenable number.

15212003252 is a deficient number, since it is larger than the sum of its proper divisors (11410112464).

15212003252 is a wasteful number, since it uses less digits than its factorization.

15212003252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158578 (or 158576 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The spelling of 15212003252 in words is "fifteen billion, two hundred twelve million, three thousand, two hundred fifty-two".