45548891 has 2 divisors, whose sum is σ = 45548892. Its totient is φ = 45548890.

The previous prime is 45548869. The next prime is 45548917. The reversal of 45548891 is 19884554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45548891 - 2¹⁴ = 45532507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45548291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22774445 + 22774446.

It is an arithmetic number, because the mean of its divisors is an integer number (22774446).

Almost surely, 2^45548891 is an apocalyptic number.

45548891 is a deficient number, since it is larger than the sum of its proper divisors (1).

45548891 is an equidigital number, since it uses as much as digits as its factorization.

45548891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 230400, while the sum is 44.

The square root of 45548891 is about 6748.9918506396. The cubic root of 45548891 is about 357.1296727552.

The spelling of 45548891 in words is "forty-five million, five hundred forty-eight thousand, eight hundred ninety-one".