50721625761 has 8 divisors (see below), whose sum is σ = 67637004864. Its totient is φ = 33810331920.

The previous prime is 50721625751. The next prime is 50721625763. The reversal of 50721625761 is 16752612705.

It is a happy number.

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

It is not a de Polignac number, because 50721625761 - 2⁵ = 50721625729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50721625763) 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, 992226 + ... + 1042091.

It is an arithmetic number, because the mean of its divisors is an integer number (8454625608).

Almost surely, 2^50721625761 is an apocalyptic number.

It is an amenable number.

50721625761 is a deficient number, since it is larger than the sum of its proper divisors (16915379103).

50721625761 is a wasteful number, since it uses less digits than its factorization.

50721625761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042631.

The product of its (nonzero) digits is 176400, while the sum is 42.

The spelling of 50721625761 in words is "fifty billion, seven hundred twenty-one million, six hundred twenty-five thousand, seven hundred sixty-one".