45559820 has 24 divisors (see below), whose sum is σ = 96558000. Its totient is φ = 18055872.

The previous prime is 45559817. The next prime is 45559823. The reversal of 45559820 is 2895554.

It is an interprime number because it is at equal distance from previous prime (45559817) and next prime (45559823).

It is not an unprimeable number, because it can be changed into a prime (45559823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8270 + ... + 12629.

It is an arithmetic number, because the mean of its divisors is an integer number (4023250).

Almost surely, 2^45559820 is an apocalyptic number.

It is an amenable number.

45559820 is an abundant number, since it is smaller than the sum of its proper divisors (50998180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45559820 is a wasteful number, since it uses less digits than its factorization.

45559820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21017 (or 21015 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The square root of 45559820 is about 6749.8014785622. The cubic root of 45559820 is about 357.1582336999.

The spelling of 45559820 in words is "forty-five million, five hundred fifty-nine thousand, eight hundred twenty".