15752575551 has 4 divisors (see below), whose sum is σ = 21003434072. Its totient is φ = 10501717032.

The previous prime is 15752575493. The next prime is 15752575567. The reversal of 15752575551 is 15557525751.

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

It is not a de Polignac number, because 15752575551 - 2¹⁵ = 15752542783 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15752575551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15752575591) 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, 2625429256 + ... + 2625429261.

It is an arithmetic number, because the mean of its divisors is an integer number (5250858518).

Almost surely, 2^15752575551 is an apocalyptic number.

15752575551 is a deficient number, since it is larger than the sum of its proper divisors (5250858521).

15752575551 is an equidigital number, since it uses as much as digits as its factorization.

15752575551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5250858520.

The product of its digits is 1531250, while the sum is 48.

The spelling of 15752575551 in words is "fifteen billion, seven hundred fifty-two million, five hundred seventy-five thousand, five hundred fifty-one".