49856825921 has 8 divisors (see below), whose sum is σ = 57022835520. Its totient is φ = 42701717808.

The previous prime is 49856825903. The next prime is 49856825929. The reversal of 49856825921 is 12952865894.

49856825921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49856825921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49856825929) 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, 2715566 + ... + 2733863.

It is an arithmetic number, because the mean of its divisors is an integer number (7127854440).

Almost surely, 2^49856825921 is an apocalyptic number.

It is an amenable number.

49856825921 is a deficient number, since it is larger than the sum of its proper divisors (7166009599).

49856825921 is a wasteful number, since it uses less digits than its factorization.

49856825921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5450743.

The product of its digits is 12441600, while the sum is 59.

The spelling of 49856825921 in words is "forty-nine billion, eight hundred fifty-six million, eight hundred twenty-five thousand, nine hundred twenty-one".