45501987 has 4 divisors (see below), whose sum is σ = 60669320. Its totient is φ = 30334656.

The previous prime is 45501977. The next prime is 45501991. The reversal of 45501987 is 78910554.

45501987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 45501987 - 2¹⁴ = 45485603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45501917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7583662 + ... + 7583667.

It is an arithmetic number, because the mean of its divisors is an integer number (15167330).

Almost surely, 2^45501987 is an apocalyptic number.

45501987 is a deficient number, since it is larger than the sum of its proper divisors (15167333).

45501987 is a wasteful number, since it uses less digits than its factorization.

45501987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15167332.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 45501987 is about 6745.5160662473. The cubic root of 45501987 is about 357.0070458166.

The spelling of 45501987 in words is "forty-five million, five hundred one thousand, nine hundred eighty-seven".