50617990 has 8 divisors (see below), whose sum is σ = 91112400. Its totient is φ = 20247192.

The previous prime is 50617979. The next prime is 50617991. The reversal of 50617990 is 9971605.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50617991) 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 in 3 ways as a sum of consecutive naturals, for example, 2530890 + ... + 2530909.

It is an arithmetic number, because the mean of its divisors is an integer number (11389050).

Almost surely, 2^50617990 is an apocalyptic number.

50617990 is a deficient number, since it is larger than the sum of its proper divisors (40494410).

50617990 is a wasteful number, since it uses less digits than its factorization.

50617990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5061806.

The product of its (nonzero) digits is 17010, while the sum is 37.

The square root of 50617990 is about 7114.6321057381. The cubic root of 50617990 is about 369.9147356487.

It can be divided in two parts, 506 and 17990, that added together give a square (18496 = 136²).

The spelling of 50617990 in words is "fifty million, six hundred seventeen thousand, nine hundred ninety".