1164252550 has 24 divisors (see below), whose sum is σ = 2279485800. Its totient is φ = 441190080.

The previous prime is 1164252539. The next prime is 1164252577. The reversal of 1164252550 is 552524611.

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 11 ways as a sum of consecutive naturals, for example, 611815 + ... + 613714.

It is an arithmetic number, because the mean of its divisors is an integer number (94978575).

Almost surely, 2^1164252550 is an apocalyptic number.

1164252550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1164252550 is a deficient number, since it is larger than the sum of its proper divisors (1115233250).

1164252550 is a wasteful number, since it uses less digits than its factorization.

1164252550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225560 (or 1225555 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1164252550 is about 34121.1452035245. The cubic root of 1164252550 is about 1051.9999825307. Note that the first 4 decimals are identical.

The spelling of 1164252550 in words is "one billion, one hundred sixty-four million, two hundred fifty-two thousand, five hundred fifty".