45557723 has 4 divisors (see below), whose sum is σ = 45573528. Its totient is φ = 45541920.

The previous prime is 45557719. The next prime is 45557737. The reversal of 45557723 is 32775554.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45557723 - 2² = 45557719 is a prime.

It is a super-2 number, since 2×45557723² = 4151012249889458, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45557713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2213 + ... + 9798.

It is an arithmetic number, because the mean of its divisors is an integer number (11393382).

Almost surely, 2^45557723 is an apocalyptic number.

45557723 is a deficient number, since it is larger than the sum of its proper divisors (15805).

45557723 is a wasteful number, since it uses less digits than its factorization.

45557723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15804.

The product of its digits is 147000, while the sum is 38.

The square root of 45557723 is about 6749.6461388728. The cubic root of 45557723 is about 357.1527539277.

The spelling of 45557723 in words is "forty-five million, five hundred fifty-seven thousand, seven hundred twenty-three".