45577555 has 4 divisors (see below), whose sum is σ = 54693072. Its totient is φ = 36462040.

The previous prime is 45577547. The next prime is 45577577. The reversal of 45577555 is 55577554.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55577554 = 2 ⋅27788777.

It is not a de Polignac number, because 45577555 - 2³ = 45577547 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4557751 + ... + 4557760.

It is an arithmetic number, because the mean of its divisors is an integer number (13673268).

Almost surely, 2^45577555 is an apocalyptic number.

45577555 is a deficient number, since it is larger than the sum of its proper divisors (9115517).

45577555 is an equidigital number, since it uses as much as digits as its factorization.

45577555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9115516.

The product of its digits is 612500, while the sum is 43.

The square root of 45577555 is about 6751.1150930791. The cubic root of 45577555 is about 357.2045711638.

Subtracting 45577555 from its reverse (55577554), we obtain a palindrome (9999999).

It can be divided in two parts, 45 and 577555, that added together give a square (577600 = 760²).

The spelling of 45577555 in words is "forty-five million, five hundred seventy-seven thousand, five hundred fifty-five".