50690578 has 8 divisors (see below), whose sum is σ = 77470668. Its totient is φ = 24867024.

The previous prime is 50690569. The next prime is 50690603. The reversal of 50690578 is 87509605.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 49885969 + 804609 = 7063^2 + 897^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 50690578.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 239001 + ... + 239212.

Almost surely, 2^50690578 is an apocalyptic number.

50690578 is a deficient number, since it is larger than the sum of its proper divisors (26780090).

50690578 is a wasteful number, since it uses less digits than its factorization.

50690578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478268.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 50690578 is about 7119.7315960646. The cubic root of 50690578 is about 370.0914748263.

The spelling of 50690578 in words is "fifty million, six hundred ninety thousand, five hundred seventy-eight".