15273470551 has 4 divisors (see below), whose sum is σ = 15937534512. Its totient is φ = 14609406592.

The previous prime is 15273470533. The next prime is 15273470617. The reversal of 15273470551 is 15507437251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15507437251 = 293 ⋅52926407.

It is a cyclic number.

It is not a de Polignac number, because 15273470551 - 2⁵ = 15273470519 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 (15273470521) 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, 332031946 + ... + 332031991.

It is an arithmetic number, because the mean of its divisors is an integer number (3984383628).

Almost surely, 2^15273470551 is an apocalyptic number.

15273470551 is a deficient number, since it is larger than the sum of its proper divisors (664063961).

15273470551 is an equidigital number, since it uses as much as digits as its factorization.

15273470551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664063960.

The product of its (nonzero) digits is 147000, while the sum is 40.

The spelling of 15273470551 in words is "fifteen billion, two hundred seventy-three million, four hundred seventy thousand, five hundred fifty-one".