15243250355 has 4 divisors (see below), whose sum is σ = 18291900432. Its totient is φ = 12194600280.

The previous prime is 15243250307. The next prime is 15243250369. The reversal of 15243250355 is 55305234251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55305234251 = 148021 ⋅373631.

It is not a de Polignac number, because 15243250355 - 2⁶ = 15243250291 is a prime.

It is a Duffinian 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, 1524325031 + ... + 1524325040.

It is an arithmetic number, because the mean of its divisors is an integer number (4572975108).

Almost surely, 2^15243250355 is an apocalyptic number.

15243250355 is a deficient number, since it is larger than the sum of its proper divisors (3048650077).

15243250355 is an equidigital number, since it uses as much as digits as its factorization.

15243250355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048650076.

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 15243250355 in words is "fifteen billion, two hundred forty-three million, two hundred fifty thousand, three hundred fifty-five".