50453681 has 8 divisors (see below), whose sum is σ = 51949800. Its totient is φ = 48964608.

The previous prime is 50453659. The next prime is 50453693. The reversal of 50453681 is 18635405.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 29376400 + 21077281 = 5420^2 + 4591^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50453681 - 2²² = 46259377 is a prime.

It is a super-2 number, since 2×50453681² = 5091147852899522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (50453621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15095 + ... + 18131.

It is an arithmetic number, because the mean of its divisors is an integer number (6493725).

Almost surely, 2^50453681 is an apocalyptic number.

It is an amenable number.

50453681 is a deficient number, since it is larger than the sum of its proper divisors (1496119).

50453681 is a wasteful number, since it uses less digits than its factorization.

50453681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 50453681 is about 7103.0754606719. The cubic root of 50453681 is about 369.5140467193.

The spelling of 50453681 in words is "fifty million, four hundred fifty-three thousand, six hundred eighty-one".