45020551 has 2 divisors, whose sum is σ = 45020552. Its totient is φ = 45020550.

The previous prime is 45020543. The next prime is 45020567. The reversal of 45020551 is 15502054.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45020551 - 2³ = 45020543 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45020051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22510275 + 22510276.

It is an arithmetic number, because the mean of its divisors is an integer number (22510276).

Almost surely, 2^45020551 is an apocalyptic number.

45020551 is a deficient number, since it is larger than the sum of its proper divisors (1).

45020551 is an equidigital number, since it uses as much as digits as its factorization.

45020551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 45020551 is about 6709.7355387526. The cubic root of 45020551 is about 355.7434686634.

The spelling of 45020551 in words is "forty-five million, twenty thousand, five hundred fifty-one".