1157550552 has 24 divisors (see below), whose sum is σ = 3135032940. Its totient is φ = 385850160.

The previous prime is 1157550551. The next prime is 1157550599. The reversal of 1157550552 is 2550557511.

1157550552 is a `hidden beast` number, since 1 + 1 + 57 + 5 + 50 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157550551) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 8038474 + ... + 8038617.

Almost surely, 2^1157550552 is an apocalyptic number.

1157550552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1157550552 is an abundant number, since it is smaller than the sum of its proper divisors (1977482388).

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

1157550552 is a wasteful number, since it uses less digits than its factorization.

1157550552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16077103 (or 16077096 counting only the distinct ones).

The product of its (nonzero) digits is 43750, while the sum is 36.

The square root of 1157550552 is about 34022.7945942129. The cubic root of 1157550552 is about 1049.9774906739.

The spelling of 1157550552 in words is "one billion, one hundred fifty-seven million, five hundred fifty thousand, five hundred fifty-two".