1157557650 has 48 divisors (see below), whose sum is σ = 2874592800. Its totient is φ = 308268160.

The previous prime is 1157557553. The next prime is 1157557657. The reversal of 1157557650 is 567557511.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1157557657) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 116581 + ... + 126119.

It is an arithmetic number, because the mean of its divisors is an integer number (59887350).

Almost surely, 2^1157557650 is an apocalyptic number.

1157557650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1157557650 is an abundant number, since it is smaller than the sum of its proper divisors (1717035150).

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

1157557650 is a wasteful number, since it uses less digits than its factorization.

1157557650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10363 (or 10358 counting only the distinct ones).

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

The square root of 1157557650 is about 34022.8989064718. The cubic root of 1157557650 is about 1049.9796367933.

The spelling of 1157557650 in words is "one billion, one hundred fifty-seven million, five hundred fifty-seven thousand, six hundred fifty".