15297284551 has 4 divisors (see below), whose sum is σ = 15710724712. Its totient is φ = 14883844392.

The previous prime is 15297284461. The next prime is 15297284581. The reversal of 15297284551 is 15548279251.

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

It is a cyclic number.

It is not a de Polignac number, because 15297284551 - 2⁷ = 15297284423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15297284495 and 15297284504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15297284581) 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, 206720025 + ... + 206720098.

It is an arithmetic number, because the mean of its divisors is an integer number (3927681178).

Almost surely, 2^15297284551 is an apocalyptic number.

15297284551 is a deficient number, since it is larger than the sum of its proper divisors (413440161).

15297284551 is an equidigital number, since it uses as much as digits as its factorization.

15297284551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413440160.

The product of its digits is 1008000, while the sum is 49.

The spelling of 15297284551 in words is "fifteen billion, two hundred ninety-seven million, two hundred eighty-four thousand, five hundred fifty-one".