45571816 has 8 divisors (see below), whose sum is σ = 85447170. Its totient is φ = 22785904.

The previous prime is 45571793. The next prime is 45571837. The reversal of 45571816 is 61817554.

It can be written as a sum of positive squares in only one way, i.e., 23912100 + 21659716 = 4890^2 + 4654^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2848231 + ... + 2848246.

Almost surely, 2^45571816 is an apocalyptic number.

It is an amenable number.

45571816 is a deficient number, since it is larger than the sum of its proper divisors (39875354).

45571816 is a wasteful number, since it uses less digits than its factorization.

45571816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5696483 (or 5696479 counting only the distinct ones).

The product of its digits is 33600, while the sum is 37.

The square root of 45571816 is about 6750.6900388034. The cubic root of 45571816 is about 357.1895777964.

The spelling of 45571816 in words is "forty-five million, five hundred seventy-one thousand, eight hundred sixteen".