45542393 has 4 divisors (see below), whose sum is σ = 49045668. Its totient is φ = 42039120.

The previous prime is 45542359. The next prime is 45542429. The reversal of 45542393 is 39324554.

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 7139584 + 38402809 = 2672^2 + 6197^2 .

It is a cyclic number.

It is not a de Polignac number, because 45542393 - 2⁸ = 45542137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45542333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1751618 + ... + 1751643.

It is an arithmetic number, because the mean of its divisors is an integer number (12261417).

Almost surely, 2^45542393 is an apocalyptic number.

It is an amenable number.

45542393 is a deficient number, since it is larger than the sum of its proper divisors (3503275).

45542393 is a wasteful number, since it uses less digits than its factorization.

45542393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503274.

The product of its digits is 64800, while the sum is 35.

The square root of 45542393 is about 6748.5104282353. The cubic root of 45542393 is about 357.1126892537.

The spelling of 45542393 in words is "forty-five million, five hundred forty-two thousand, three hundred ninety-three".