77825050 has 12 divisors (see below), whose sum is σ = 144754686. Its totient is φ = 31130000.

The previous prime is 77825003. The next prime is 77825063. The reversal of 77825050 is 5052877.

It can be written as a sum of positive squares in 3 ways, for example, as 32706961 + 45118089 = 5719^2 + 6717^2 .

It is a junction number, because it is equal to n+sod(n) for n = 77824997 and 77825015.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 778201 + ... + 778300.

Almost surely, 2^77825050 is an apocalyptic number.

77825050 is a deficient number, since it is larger than the sum of its proper divisors (66929636).

77825050 is a wasteful number, since it uses less digits than its factorization.

77825050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1556513 (or 1556508 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 77825050 is about 8821.8507128607. The cubic root of 77825050 is about 426.9461838950.

The spelling of 77825050 in words is "seventy-seven million, eight hundred twenty-five thousand, fifty".