15213012455 has 4 divisors (see below), whose sum is σ = 18255614952. Its totient is φ = 12170409960.

The previous prime is 15213012449. The next prime is 15213012491. The reversal of 15213012455 is 55421031251.

15213012455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 15213012455 - 2¹⁶ = 15212946919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1521301241 + ... + 1521301250.

It is an arithmetic number, because the mean of its divisors is an integer number (4563903738).

Almost surely, 2^15213012455 is an apocalyptic number.

15213012455 is a deficient number, since it is larger than the sum of its proper divisors (3042602497).

15213012455 is an equidigital number, since it uses as much as digits as its factorization.

15213012455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3042602496.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 15213012455 in words is "fifteen billion, two hundred thirteen million, twelve thousand, four hundred fifty-five".