1253530550 has 12 divisors (see below), whose sum is σ = 2331566916. Its totient is φ = 501412200.

The previous prime is 1253530549. The next prime is 1253530559. The reversal of 1253530550 is 550353521.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253530559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12535256 + ... + 12535355.

It is an arithmetic number, because the mean of its divisors is an integer number (194297243).

Almost surely, 2^1253530550 is an apocalyptic number.

1253530550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1253530550 is a deficient number, since it is larger than the sum of its proper divisors (1078036366).

1253530550 is a wasteful number, since it uses less digits than its factorization.

1253530550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25070623 (or 25070618 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 29.

The square root of 1253530550 is about 35405.2333702237. The cubic root of 1253530550 is about 1078.2305702685.

The spelling of 1253530550 in words is "one billion, two hundred fifty-three million, five hundred thirty thousand, five hundred fifty".