775560030 has 64 divisors (see below), whose sum is σ = 2156433408. Its totient is φ = 174839040.

The previous prime is 775560029. The next prime is 775560067. The reversal of 775560030 is 30065577.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 775559973 and 775560000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9966 + ... + 40625.

It is an arithmetic number, because the mean of its divisors is an integer number (33694272).

Almost surely, 2^775560030 is an apocalyptic number.

775560030 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

775560030 is an abundant number, since it is smaller than the sum of its proper divisors (1380873378).

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

775560030 is a wasteful number, since it uses less digits than its factorization.

775560030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50681.

The product of its (nonzero) digits is 22050, while the sum is 33.

The square root of 775560030 is about 27848.8784334307. The cubic root of 775560030 is about 918.7664745993.

The spelling of 775560030 in words is "seven hundred seventy-five million, five hundred sixty thousand, thirty".