45548887 has 4 divisors (see below), whose sum is σ = 46779976. Its totient is φ = 44317800.

The previous prime is 45548869. The next prime is 45548891. The reversal of 45548887 is 78884554.

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

It is a cyclic number.

It is not a de Polignac number, because 45548887 - 2¹⁹ = 45024599 is a prime.

It is a super-2 number, since 2×45548887² = 4149402213877538, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45548887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45546887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 615489 + ... + 615562.

It is an arithmetic number, because the mean of its divisors is an integer number (11694994).

Almost surely, 2^45548887 is an apocalyptic number.

45548887 is a deficient number, since it is larger than the sum of its proper divisors (1231089).

45548887 is a wasteful number, since it uses less digits than its factorization.

45548887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231088.

The product of its digits is 1433600, while the sum is 49.

The square root of 45548887 is about 6748.9915542991. The cubic root of 45548887 is about 357.1296623011.

The spelling of 45548887 in words is "forty-five million, five hundred forty-eight thousand, eight hundred eighty-seven".