45521023 has 2 divisors, whose sum is σ = 45521024. Its totient is φ = 45521022.

The previous prime is 45520999. The next prime is 45521041. The reversal of 45521023 is 32012554.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45521023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45520985 and 45521003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45521083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22760511 + 22760512.

It is an arithmetic number, because the mean of its divisors is an integer number (22760512).

Almost surely, 2^45521023 is an apocalyptic number.

45521023 is a deficient number, since it is larger than the sum of its proper divisors (1).

45521023 is an equidigital number, since it uses as much as digits as its factorization.

45521023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 45521023 is about 6746.9269300920. The cubic root of 45521023 is about 357.0568241455.

Adding to 45521023 its reverse (32012554), we get a palindrome (77533577).

The spelling of 45521023 in words is "forty-five million, five hundred twenty-one thousand, twenty-three".