50278731 has 8 divisors (see below), whose sum is σ = 70566720. Its totient is φ = 31754952.

The previous prime is 50278651. The next prime is 50278747. The reversal of 50278731 is 13787205.

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

It is not a de Polignac number, because 50278731 - 2⁷ = 50278603 is a prime.

It is a super-2 number, since 2×50278731² = 5055901581940722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50278692 and 50278701.

It is not an unprimeable number, because it can be changed into a prime (50278031) 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, 440985 + ... + 441098.

It is an arithmetic number, because the mean of its divisors is an integer number (8820840).

Almost surely, 2^50278731 is an apocalyptic number.

50278731 is a deficient number, since it is larger than the sum of its proper divisors (20287989).

50278731 is a wasteful number, since it uses less digits than its factorization.

50278731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882105.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 50278731 is about 7090.7496782780. The cubic root of 50278731 is about 369.0864509071.

The spelling of 50278731 in words is "fifty million, two hundred seventy-eight thousand, seven hundred thirty-one".