775020000 has 120 divisors (see below), whose sum is σ = 2542417416. Its totient is φ = 206656000.

The previous prime is 775019977. The next prime is 775020017. The reversal of 775020000 is 20577.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 53542 + ... + 66458.

Almost surely, 2^775020000 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 775020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1271208708).

775020000 is an abundant number, since it is smaller than the sum of its proper divisors (1767397416).

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

775020000 is a wasteful number, since it uses less digits than its factorization.

775020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12950 (or 12927 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 21.

The square root of 775020000 is about 27839.1810224367. The cubic root of 775020000 is about 918.5531764039.

Adding to 775020000 its reverse (20577), we get a palindrome (775040577).

The spelling of 775020000 in words is "seven hundred seventy-five million, twenty thousand".