775506252 has 18 divisors (see below), whose sum is σ = 1809739708. Its totient is φ = 258469928.

The previous prime is 775506239. The next prime is 775506257. The reversal of 775506252 is 252605577.

It is a self number, because there is not a number n which added to its sum of digits gives 775506252.

It is not an unprimeable number, because it can be changed into a prime (775506257) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 92449 + ... + 100487.

Almost surely, 2^775506252 is an apocalyptic number.

It is an amenable number.

775506252 is an abundant number, since it is smaller than the sum of its proper divisors (1034233456).

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

775506252 is an frugal number, since it uses more digits than its factorization.

775506252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16085 (or 8044 counting only the distinct ones).

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 775506252 is about 27847.9128840924. The cubic root of 775506252 is about 918.7452380891.

The spelling of 775506252 in words is "seven hundred seventy-five million, five hundred six thousand, two hundred fifty-two".