50698642 has 4 divisors (see below), whose sum is σ = 76047966. Its totient is φ = 25349320.

The previous prime is 50698639. The next prime is 50698649. The reversal of 50698642 is 24689605.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24689605 = 5 ⋅4937921.

It can be written as a sum of positive squares in only one way, i.e., 46662561 + 4036081 = 6831^2 + 2009^2 .

It is a junction number, because it is equal to n+sod(n) for n = 50698595 and 50698604.

It is not an unprimeable number, because it can be changed into a prime (50698649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12674659 + ... + 12674662.

Almost surely, 2^50698642 is an apocalyptic number.

50698642 is a deficient number, since it is larger than the sum of its proper divisors (25349324).

50698642 is a wasteful number, since it uses less digits than its factorization.

50698642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25349323.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 50698642 is about 7120.2978870269. The cubic root of 50698642 is about 370.1110988506. Note that the first 3 decimals are identical.

The spelling of 50698642 in words is "fifty million, six hundred ninety-eight thousand, six hundred forty-two".