15541241053 has 4 divisors (see below), whose sum is σ = 16736721148. Its totient is φ = 14345760960.

The previous prime is 15541241029. The next prime is 15541241057. The reversal of 15541241053 is 35014214551.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4747485604 + 10793755449 = 68902^2 + 103893^2 .

It is a cyclic number.

It is not a de Polignac number, because 15541241053 - 2⁵ = 15541241021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15541241057) 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, 597740028 + ... + 597740053.

It is an arithmetic number, because the mean of its divisors is an integer number (4184180287).

Almost surely, 2^15541241053 is an apocalyptic number.

15541241053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

15541241053 is a deficient number, since it is larger than the sum of its proper divisors (1195480095).

15541241053 is a wasteful number, since it uses less digits than its factorization.

15541241053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195480094.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 15541241053 in words is "fifteen billion, five hundred forty-one million, two hundred forty-one thousand, fifty-three".