1164512550 has 48 divisors (see below), whose sum is σ = 2890386432. Its totient is φ = 310279200.

The previous prime is 1164512549. The next prime is 1164512611. The reversal of 1164512550 is 552154611.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238635 + ... + 243465.

It is an arithmetic number, because the mean of its divisors is an integer number (60216384).

Almost surely, 2^1164512550 is an apocalyptic number.

1164512550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1164512550 is an abundant number, since it is smaller than the sum of its proper divisors (1725873882).

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

1164512550 is a wasteful number, since it uses less digits than its factorization.

1164512550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6453 (or 6448 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 1164512550 is about 34124.9549450252. The cubic root of 1164512550 is about 1052.0782873158.

The spelling of 1164512550 in words is "one billion, one hundred sixty-four million, five hundred twelve thousand, five hundred fifty".