45555987 has 8 divisors (see below), whose sum is σ = 60855760. Its totient is φ = 30313440.

The previous prime is 45555967. The next prime is 45556033. The reversal of 45555987 is 78955554.

It is a happy number.

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

It is not a de Polignac number, because 45555987 - 2⁷ = 45555859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45555947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12412 + ... + 15657.

It is an arithmetic number, because the mean of its divisors is an integer number (7606970).

Almost surely, 2^45555987 is an apocalyptic number.

45555987 is a deficient number, since it is larger than the sum of its proper divisors (15299773).

45555987 is a wasteful number, since it uses less digits than its factorization.

45555987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28613.

The product of its digits is 1260000, while the sum is 48.

The square root of 45555987 is about 6749.5175383134. The cubic root of 45555987 is about 357.1482173748.

The spelling of 45555987 in words is "forty-five million, five hundred fifty-five thousand, nine hundred eighty-seven".