50278761 has 12 divisors (see below), whose sum is σ = 78211588. Its totient is φ = 30940704.

The previous prime is 50278747. The next prime is 50278763. The reversal of 50278761 is 16787205.

It can be written as a sum of positive squares in 2 ways, for example, as 18974736 + 31304025 = 4356^2 + 5595^2 .

It is not a de Polignac number, because 50278761 - 2¹⁰ = 50277737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (50278763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 214750 + ... + 214983.

Almost surely, 2^50278761 is an apocalyptic number.

It is an amenable number.

50278761 is a deficient number, since it is larger than the sum of its proper divisors (27932827).

50278761 is a wasteful number, since it uses less digits than its factorization.

50278761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429752 (or 429749 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 50278761 is about 7090.7517937099. The cubic root of 50278761 is about 369.0865243152.

The spelling of 50278761 in words is "fifty million, two hundred seventy-eight thousand, seven hundred sixty-one".