45525042251 has 4 divisors (see below), whose sum is σ = 49026968592. Its totient is φ = 42023115912.

The previous prime is 45525042229. The next prime is 45525042263. The reversal of 45525042251 is 15224052554.

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 45525042251 - 2²⁶ = 45457933387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45525042751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750963151 + ... + 1750963176.

It is an arithmetic number, because the mean of its divisors is an integer number (12256742148).

Almost surely, 2^45525042251 is an apocalyptic number.

45525042251 is a deficient number, since it is larger than the sum of its proper divisors (3501926341).

45525042251 is a wasteful number, since it uses less digits than its factorization.

45525042251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501926340.

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 45525042251 in words is "forty-five billion, five hundred twenty-five million, forty-two thousand, two hundred fifty-one".