50478242 has 4 divisors (see below), whose sum is σ = 75717366. Its totient is φ = 25239120.

The previous prime is 50478229. The next prime is 50478247. The reversal of 50478242 is 24287405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24287405 = 5 ⋅4857481.

It can be written as a sum of positive squares in only one way, i.e., 30129121 + 20349121 = 5489^2 + 4511^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50478199 and 50478208.

It is not an unprimeable number, because it can be changed into a prime (50478247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12619559 + ... + 12619562.

Almost surely, 2^50478242 is an apocalyptic number.

50478242 is a deficient number, since it is larger than the sum of its proper divisors (25239124).

50478242 is a wasteful number, since it uses less digits than its factorization.

50478242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25239123.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 50478242 is about 7104.8041493063. The cubic root of 50478242 is about 369.5739971665.

It can be divided in two parts, 50 and 478242, that multiplied together give a square (23912100 = 4890²).

The spelling of 50478242 in words is "fifty million, four hundred seventy-eight thousand, two hundred forty-two".