1157765055 has 32 divisors (see below), whose sum is σ = 1896545280. Its totient is φ = 602916480.

The previous prime is 1157765047. The next prime is 1157765107. The reversal of 1157765055 is 5505677511.

It is a happy number.

It is not a de Polignac number, because 1157765055 - 2³ = 1157765047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1157764998 and 1157765016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122634 + ... + 131736.

It is an arithmetic number, because the mean of its divisors is an integer number (59267040).

Almost surely, 2^1157765055 is an apocalyptic number.

1157765055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1157765055 is a deficient number, since it is larger than the sum of its proper divisors (738780225).

1157765055 is a wasteful number, since it uses less digits than its factorization.

1157765055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9311.

The product of its (nonzero) digits is 183750, while the sum is 42.

The square root of 1157765055 is about 34025.9467906479. The cubic root of 1157765055 is about 1050.0423429636.

The spelling of 1157765055 in words is "one billion, one hundred fifty-seven million, seven hundred sixty-five thousand, fifty-five".