1157711055 has 16 divisors (see below), whose sum is σ = 1897517664. Its totient is φ = 602385920.

The previous prime is 1157711053. The next prime is 1157711057. The reversal of 1157711055 is 5501177511.

It is an interprime number because it is at equal distance from previous prime (1157711053) and next prime (1157711057).

It is not a de Polignac number, because 1157711055 - 2¹ = 1157711053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157711053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940614 + ... + 941843.

It is an arithmetic number, because the mean of its divisors is an integer number (118594854).

Almost surely, 2^1157711055 is an apocalyptic number.

1157711055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1157711055 is a deficient number, since it is larger than the sum of its proper divisors (739806609).

1157711055 is a wasteful number, since it uses less digits than its factorization.

1157711055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882506.

The product of its (nonzero) digits is 6125, while the sum is 33.

The square root of 1157711055 is about 34025.1532693095. The cubic root of 1157711055 is about 1050.0260174959.

Adding to 1157711055 its reverse (5501177511), we get a palindrome (6658888566).

The spelling of 1157711055 in words is "one billion, one hundred fifty-seven million, seven hundred eleven thousand, fifty-five".