45575775 has 72 divisors (see below), whose sum is σ = 98267520. Its totient is φ = 19725120.

The previous prime is 45575773. The next prime is 45575779. The reversal of 45575775 is 57757554.

It is a happy number.

45575775 is a `hidden beast` number, since 4 + 5 + 575 + 7 + 75 = 666.

It is not a de Polignac number, because 45575775 - 2¹ = 45575773 is a prime.

It is a super-3 number, since 3×45575775³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 45575775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45575771) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 29164 + ... + 30686.

Almost surely, 2^45575775 is an apocalyptic number.

45575775 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

45575775 is an abundant number, since it is smaller than the sum of its proper divisors (52691745).

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

45575775 is a wasteful number, since it uses less digits than its factorization.

45575775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565 (or 1557 counting only the distinct ones).

The product of its digits is 857500, while the sum is 45.

The square root of 45575775 is about 6750.9832617183. The cubic root of 45575775 is about 357.1999209772.

The spelling of 45575775 in words is "forty-five million, five hundred seventy-five thousand, seven hundred seventy-five".