50403540981 has 8 divisors (see below), whose sum is σ = 67208002720. Its totient is φ = 33600719952.

The previous prime is 50403540961. The next prime is 50403541073. The reversal of 50403540981 is 18904530405.

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

It is not a de Polignac number, because 50403540981 - 2⁷ = 50403540853 is a prime.

It is a super-2 number, since 2×50403540981² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50403540961) 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, 336610 + ... + 462723.

It is an arithmetic number, because the mean of its divisors is an integer number (8401000340).

Almost surely, 2^50403540981 is an apocalyptic number.

It is an amenable number.

50403540981 is a deficient number, since it is larger than the sum of its proper divisors (16804461739).

50403540981 is a wasteful number, since it uses less digits than its factorization.

50403540981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820355.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 50403540981 in words is "fifty billion, four hundred three million, five hundred forty thousand, nine hundred eighty-one".