15242530403 has 2 divisors, whose sum is σ = 15242530404. Its totient is φ = 15242530402.

The previous prime is 15242530357. The next prime is 15242530421. The reversal of 15242530403 is 30403524251.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15242530403 is a prime.

It is not a weakly prime, because it can be changed into another prime (15242530423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7621265201 + 7621265202.

It is an arithmetic number, because the mean of its divisors is an integer number (7621265202).

Almost surely, 2^15242530403 is an apocalyptic number.

15242530403 is a deficient number, since it is larger than the sum of its proper divisors (1).

15242530403 is an equidigital number, since it uses as much as digits as its factorization.

15242530403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 29.

The spelling of 15242530403 in words is "fifteen billion, two hundred forty-two million, five hundred thirty thousand, four hundred three".