49745745 has 48 divisors (see below), whose sum is σ = 102211200. Its totient is φ = 22737024.

The previous prime is 49745741. The next prime is 49745767. The reversal of 49745745 is 54754794.

49745745 is a `hidden beast` number, since 4 + 9 + 74 + 574 + 5 = 666.

It is not a de Polignac number, because 49745745 - 2² = 49745741 is a prime.

It is a super-3 number, since 3×49745745³ (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 49745745.

It is not an unprimeable number, because it can be changed into a prime (49745741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5581 + ... + 11429.

It is an arithmetic number, because the mean of its divisors is an integer number (2129400).

Almost surely, 2^49745745 is an apocalyptic number.

49745745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

49745745 is an abundant number, since it is smaller than the sum of its proper divisors (52465455).

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

49745745 is an equidigital number, since it uses as much as digits as its factorization.

49745745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5876 (or 5864 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 49745745 is about 7053.0663544305. The cubic root of 49745745 is about 367.7776327714. Note that the first 3 decimals are identical.

The spelling of 49745745 in words is "forty-nine million, seven hundred forty-five thousand, seven hundred forty-five".