45555000 has 80 divisors (see below), whose sum is σ = 142360680. Its totient is φ = 12144000.

The previous prime is 45554987. The next prime is 45555023. The reversal of 45555000 is 55554.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13482 + ... + 16518.

Almost surely, 2^45555000 is an apocalyptic number.

45555000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45555000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71180340).

45555000 is an abundant number, since it is smaller than the sum of its proper divisors (96805680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45555000 is a wasteful number, since it uses less digits than its factorization.

45555000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066 (or 3047 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 24.

The square root of 45555000 is about 6749.4444215802. Note that the first 4 decimals coincide. The cubic root of 45555000 is about 357.1456380736.

It can be divided in two parts, 455 and 55000, that added together give a palindrome (55455).

The spelling of 45555000 in words is "forty-five million, five hundred fifty-five thousand".