15258552551 has 4 divisors (see below), whose sum is σ = 16645693704. Its totient is φ = 13871411400.

The previous prime is 15258552481. The next prime is 15258552577. The reversal of 15258552551 is 15525585251.

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

It is a de Polignac number, because none of the positive numbers 2^k-15258552551 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 (15258512551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693570560 + ... + 693570581.

It is an arithmetic number, because the mean of its divisors is an integer number (4161423426).

Almost surely, 2^15258552551 is an apocalyptic number.

15258552551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15258552551 is a deficient number, since it is larger than the sum of its proper divisors (1387141153).

15258552551 is a wasteful number, since it uses less digits than its factorization.

15258552551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387141152.

The product of its digits is 500000, while the sum is 44.

The spelling of 15258552551 in words is "fifteen billion, two hundred fifty-eight million, five hundred fifty-two thousand, five hundred fifty-one".