775551042 has 96 divisors (see below), whose sum is σ = 1975214592. Its totient is φ = 215332992.

The previous prime is 775551019. The next prime is 775551059. The reversal of 775551042 is 240155577.

775551042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 775550988 and 775551006.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1024128 + ... + 1024884.

It is an arithmetic number, because the mean of its divisors is an integer number (20575152).

Almost surely, 2^775551042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 775551042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (987607296).

775551042 is an abundant number, since it is smaller than the sum of its proper divisors (1199663550).

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

775551042 is a wasteful number, since it uses less digits than its factorization.

775551042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The square root of 775551042 is about 27848.7170620120. The cubic root of 775551042 is about 918.7629253770.

The spelling of 775551042 in words is "seven hundred seventy-five million, five hundred fifty-one thousand, forty-two".