775396125 has 128 divisors (see below), whose sum is σ = 1710858240. Its totient is φ = 338817600.

The previous prime is 775396117. The next prime is 775396157. The reversal of 775396125 is 521693577.

It is not a de Polignac number, because 775396125 - 2³ = 775396117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 542662 + ... + 544088.

It is an arithmetic number, because the mean of its divisors is an integer number (13366080).

Almost surely, 2^775396125 is an apocalyptic number.

775396125 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

775396125 is an abundant number, since it is smaller than the sum of its proper divisors (935462115).

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

775396125 is a wasteful number, since it uses less digits than its factorization.

775396125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 1465 counting only the distinct ones).

The product of its digits is 396900, while the sum is 45.

The square root of 775396125 is about 27845.9355202873. The cubic root of 775396125 is about 918.7017467369.

It can be divided in two parts, 775 and 396125, that added together give a square (396900 = 630²).

The spelling of 775396125 in words is "seven hundred seventy-five million, three hundred ninety-six thousand, one hundred twenty-five".