50157778 has 8 divisors (see below), whose sum is σ = 82076400. Its totient is φ = 22798980.

The previous prime is 50157773. The next prime is 50157787. The reversal of 50157778 is 87775105.

It is a happy number.

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 50157778.

It is not an unprimeable number, because it can be changed into a prime (50157773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1139928 + ... + 1139971.

It is an arithmetic number, because the mean of its divisors is an integer number (10259550).

Almost surely, 2^50157778 is an apocalyptic number.

50157778 is a deficient number, since it is larger than the sum of its proper divisors (31918622).

50157778 is a wasteful number, since it uses less digits than its factorization.

50157778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2279912.

The product of its (nonzero) digits is 68600, while the sum is 40.

The square root of 50157778 is about 7082.2156137751. The cubic root of 50157778 is about 368.7902490587.

The spelling of 50157778 in words is "fifty million, one hundred fifty-seven thousand, seven hundred seventy-eight".