525525045251 has 4 divisors (see below), whose sum is σ = 525900690000. Its totient is φ = 525149400504.

The previous prime is 525525045229. The next prime is 525525045301. The reversal of 525525045251 is 152540525525.

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 525525045251 - 2¹⁰ = 525525044227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 525525045199 and 525525045208.

It is not an unprimeable number, because it can be changed into a prime (525525045211) 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, 187820276 + ... + 187823073.

It is an arithmetic number, because the mean of its divisors is an integer number (131475172500).

Almost surely, 2^525525045251 is an apocalyptic number.

525525045251 is a deficient number, since it is larger than the sum of its proper divisors (375644749).

525525045251 is a wasteful number, since it uses less digits than its factorization.

525525045251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375644748.

The product of its (nonzero) digits is 500000, while the sum is 41.

The spelling of 525525045251 in words is "five hundred twenty-five billion, five hundred twenty-five million, forty-five thousand, two hundred fifty-one".