15252540241 has 4 divisors (see below), whose sum is σ = 15252787252. Its totient is φ = 15252293232.

The previous prime is 15252540239. The next prime is 15252540271. The reversal of 15252540241 is 14204525251.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14204525251 = 7 ⋅2029217893.

It can be written as a sum of positive squares in 2 ways, for example, as 8515413841 + 6737126400 = 92279^2 + 82080^2 .

It is a cyclic number.

It is not a de Polignac number, because 15252540241 - 2¹ = 15252540239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15252540221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60295 + ... + 184771.

It is an arithmetic number, because the mean of its divisors is an integer number (3813196813).

Almost surely, 2^15252540241 is an apocalyptic number.

It is an amenable number.

15252540241 is a deficient number, since it is larger than the sum of its proper divisors (247011).

15252540241 is a wasteful number, since it uses less digits than its factorization.

15252540241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247010.

The product of its (nonzero) digits is 16000, while the sum is 31.

The spelling of 15252540241 in words is "fifteen billion, two hundred fifty-two million, five hundred forty thousand, two hundred forty-one".