45205555 has 16 divisors (see below), whose sum is σ = 55637280. Its totient is φ = 35246848.

The previous prime is 45205553. The next prime is 45205561. The reversal of 45205555 is 55550254.

It is a cyclic number.

It is not a de Polignac number, because 45205555 - 2¹ = 45205553 is a prime.

45205555 is a modest number, since divided by 5555 gives 4520 as remainder.

It is not an unprimeable number, because it can be changed into a prime (45205553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46959 + ... + 47911.

It is an arithmetic number, because the mean of its divisors is an integer number (3477330).

Almost surely, 2^45205555 is an apocalyptic number.

45205555 is a deficient number, since it is larger than the sum of its proper divisors (10431725).

45205555 is a wasteful number, since it uses less digits than its factorization.

45205555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190.

The product of its (nonzero) digits is 25000, while the sum is 31.

The square root of 45205555 is about 6723.5076411052. The cubic root of 45205555 is about 356.2300910183.

The spelling of 45205555 in words is "forty-five million, two hundred five thousand, five hundred fifty-five".