45292997521 has 4 divisors (see below), whose sum is σ = 45522911412. Its totient is φ = 45063083632.

The previous prime is 45292997467. The next prime is 45292997573. The reversal of 45292997521 is 12579929254.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38040601600 + 7252395921 = 195040^2 + 85161^2 .

It is a cyclic number.

It is not a de Polignac number, because 45292997521 - 2²⁷ = 45158779793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45292917521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114956650 + ... + 114957043.

It is an arithmetic number, because the mean of its divisors is an integer number (11380727853).

Almost surely, 2^45292997521 is an apocalyptic number.

It is an amenable number.

45292997521 is a deficient number, since it is larger than the sum of its proper divisors (229913891).

45292997521 is a wasteful number, since it uses less digits than its factorization.

45292997521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229913890.

The product of its digits is 4082400, while the sum is 55.

The spelling of 45292997521 in words is "forty-five billion, two hundred ninety-two million, nine hundred ninety-seven thousand, five hundred twenty-one".