15055798193 has 4 divisors (see below), whose sum is σ = 15109377828. Its totient is φ = 15002218560.

The previous prime is 15055798127. The next prime is 15055798207. The reversal of 15055798193 is 39189755051.

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 7456840609 + 7598957584 = 86353^2 + 87172^2 .

It is a cyclic number.

It is not a de Polignac number, because 15055798193 - 2¹² = 15055794097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (15055791193) 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, 26789396 + ... + 26789957.

It is an arithmetic number, because the mean of its divisors is an integer number (3777344457).

Almost surely, 2^15055798193 is an apocalyptic number.

It is an amenable number.

15055798193 is a deficient number, since it is larger than the sum of its proper divisors (53579635).

15055798193 is an equidigital number, since it uses as much as digits as its factorization.

15055798193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53579634.

The product of its (nonzero) digits is 1701000, while the sum is 53.

The spelling of 15055798193 in words is "fifteen billion, fifty-five million, seven hundred ninety-eight thousand, one hundred ninety-three".