49855457 has 4 divisors (see below), whose sum is σ = 50796180. Its totient is φ = 48914736.

The previous prime is 49855453. The next prime is 49855469. The reversal of 49855457 is 75455894.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23804641 + 26050816 = 4879^2 + 5104^2 .

It is a cyclic number.

It is not a de Polignac number, because 49855457 - 2² = 49855453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49855453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470282 + ... + 470387.

It is an arithmetic number, because the mean of its divisors is an integer number (12699045).

Almost surely, 2^49855457 is an apocalyptic number.

It is an amenable number.

49855457 is a deficient number, since it is larger than the sum of its proper divisors (940723).

49855457 is an equidigital number, since it uses as much as digits as its factorization.

49855457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940722.

The product of its digits is 1008000, while the sum is 47.

The square root of 49855457 is about 7060.8396809445. The cubic root of 49855457 is about 368.0478065846.

It can be divided in two parts, 498 and 55457, that added together give a palindrome (55955).

The spelling of 49855457 in words is "forty-nine million, eight hundred fifty-five thousand, four hundred fifty-seven".