50778672 has 80 divisors (see below), whose sum is σ = 151895040. Its totient is φ = 14317056.

The previous prime is 50778671. The next prime is 50778709. The reversal of 50778672 is 27687705.

It is a super-3 number, since 3×50778672³ (a number of 24 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (50778671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25588 + ... + 27500.

It is an arithmetic number, because the mean of its divisors is an integer number (1898688).

Almost surely, 2^50778672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50778672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75947520).

50778672 is an abundant number, since it is smaller than the sum of its proper divisors (101116368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50778672 is a wasteful number, since it uses less digits than its factorization.

50778672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010 (or 2004 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The square root of 50778672 is about 7125.9155201279. The cubic root of 50778672 is about 370.3057419301.

The spelling of 50778672 in words is "fifty million, seven hundred seventy-eight thousand, six hundred seventy-two".