45558639 has 16 divisors (see below), whose sum is σ = 77136640. Its totient is φ = 26033400.

The previous prime is 45558631. The next prime is 45558659. The reversal of 45558639 is 93685554.

45558639 is a `hidden beast` number, since 4 + 5 + 5 + 5 + 8 + 639 = 666.

It is not a de Polignac number, because 45558639 - 2³ = 45558631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45558594 and 45558603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45558631) 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 15 ways as a sum of consecutive naturals, for example, 120337 + ... + 120714.

It is an arithmetic number, because the mean of its divisors is an integer number (4821040).

Almost surely, 2^45558639 is an apocalyptic number.

45558639 is a deficient number, since it is larger than the sum of its proper divisors (31578001).

45558639 is a wasteful number, since it uses less digits than its factorization.

45558639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241067 (or 241061 counting only the distinct ones).

The product of its digits is 648000, while the sum is 45.

The square root of 45558639 is about 6749.7139939408. The cubic root of 45558639 is about 357.1551475923.

It can be divided in two parts, 455586 and 39, that added together give a square (455625 = 675²).

The spelling of 45558639 in words is "forty-five million, five hundred fifty-eight thousand, six hundred thirty-nine".