45551505 has 32 divisors (see below), whose sum is σ = 74556288. Its totient is φ = 23744000.

The previous prime is 45551497. The next prime is 45551521. The reversal of 45551505 is 50515554.

It is not a de Polignac number, because 45551505 - 2³ = 45551497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161965 + ... + 162245.

It is an arithmetic number, because the mean of its divisors is an integer number (2329884).

Almost surely, 2^45551505 is an apocalyptic number.

It is an amenable number.

45551505 is a deficient number, since it is larger than the sum of its proper divisors (29004783).

45551505 is a wasteful number, since it uses less digits than its factorization.

45551505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497.

The product of its (nonzero) digits is 12500, while the sum is 30.

The square root of 45551505 is about 6749.1855064148. The cubic root of 45551505 is about 357.1365043822.

It can be divided in two parts, 45551 and 505, that added together give a triangular number (46056 = T₃₀₃).

The spelling of 45551505 in words is "forty-five million, five hundred fifty-one thousand, five hundred five".