45553881 has 4 divisors (see below), whose sum is σ = 60738512. Its totient is φ = 30369252.

The previous prime is 45553861. The next prime is 45553939. The reversal of 45553881 is 18835554.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 45553881 - 2⁶ = 45553817 is a prime.

It is a super-2 number, since 2×45553881² = 4150312148324322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45553801) 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, 7592311 + ... + 7592316.

It is an arithmetic number, because the mean of its divisors is an integer number (15184628).

Almost surely, 2^45553881 is an apocalyptic number.

It is an amenable number.

45553881 is a deficient number, since it is larger than the sum of its proper divisors (15184631).

45553881 is a wasteful number, since it uses less digits than its factorization.

45553881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15184630.

The product of its digits is 96000, while the sum is 39.

The square root of 45553881 is about 6749.3615253593. The cubic root of 45553881 is about 357.1427137752.

The spelling of 45553881 in words is "forty-five million, five hundred fifty-three thousand, eight hundred eighty-one".