45025042521 has 32 divisors (see below), whose sum is σ = 64049626368. Its totient is φ = 28036177920.

The previous prime is 45025042499. The next prime is 45025042523. The reversal of 45025042521 is 12524052054.

It is not a de Polignac number, because 45025042521 - 2⁷ = 45025042393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45025042523) 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 31 ways as a sum of consecutive naturals, for example, 4638345 + ... + 4648041.

It is an arithmetic number, because the mean of its divisors is an integer number (2001550824).

Almost surely, 2^45025042521 is an apocalyptic number.

It is an amenable number.

45025042521 is a deficient number, since it is larger than the sum of its proper divisors (19024583847).

45025042521 is a wasteful number, since it uses less digits than its factorization.

45025042521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10401.

The product of its (nonzero) digits is 16000, while the sum is 30.

Adding to 45025042521 its reverse (12524052054), we get a palindrome (57549094575).

The spelling of 45025042521 in words is "forty-five billion, twenty-five million, forty-two thousand, five hundred twenty-one".