45553639 has 8 divisors (see below), whose sum is σ = 47738880. Its totient is φ = 43385496.

The previous prime is 45553633. The next prime is 45553643. The reversal of 45553639 is 93635554.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45553639 - 2³ = 45553631 is a prime.

It is a super-2 number, since 2×45553639² = 4150268052284642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45553631) 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 7 ways as a sum of consecutive naturals, for example, 1354 + ... + 9640.

It is an arithmetic number, because the mean of its divisors is an integer number (5967360).

Almost surely, 2^45553639 is an apocalyptic number.

45553639 is a deficient number, since it is larger than the sum of its proper divisors (2185241).

45553639 is a wasteful number, since it uses less digits than its factorization.

45553639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8549.

The product of its digits is 243000, while the sum is 40.

The square root of 45553639 is about 6749.3435977138. The cubic root of 45553639 is about 357.1420813469.

The spelling of 45553639 in words is "forty-five million, five hundred fifty-three thousand, six hundred thirty-nine".