49553775 has 42 divisors (see below), whose sum is σ = 92161760. Its totient is φ = 26418960.

The previous prime is 49553773. The next prime is 49553783. The reversal of 49553775 is 57735594.

49553775 is a `hidden beast` number, since 49 + 5 + 537 + 75 = 666.

It is not a de Polignac number, because 49553775 - 2¹ = 49553773 is a prime.

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 49553775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49553773) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 16866 + ... + 19584.

Almost surely, 2^49553775 is an apocalyptic number.

49553775 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

49553775 is a deficient number, since it is larger than the sum of its proper divisors (42607985).

49553775 is an equidigital number, since it uses as much as digits as its factorization.

49553775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2747 (or 2727 counting only the distinct ones).

The product of its digits is 661500, while the sum is 45.

The square root of 49553775 is about 7039.4442252212. Note that the first 3 decimals coincide. The cubic root of 49553775 is about 367.3039353997.

The spelling of 49553775 in words is "forty-nine million, five hundred fifty-three thousand, seven hundred seventy-five".