1252603533 has 16 divisors (see below), whose sum is σ = 1724855040. Its totient is φ = 808110336.

The previous prime is 1252603523. The next prime is 1252603549. The reversal of 1252603533 is 3353062521.

It is a de Polignac number, because none of the positive numbers 2^k-1252603533 is a prime.

It is a super-2 number, since 2×1252603533² = 3138031221768164178, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1252603533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252603523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37360 + ... + 62457.

It is an arithmetic number, because the mean of its divisors is an integer number (107803440).

Almost surely, 2^1252603533 is an apocalyptic number.

It is an amenable number.

1252603533 is a deficient number, since it is larger than the sum of its proper divisors (472251507).

1252603533 is an equidigital number, since it uses as much as digits as its factorization.

1252603533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99956.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 1252603533 is about 35392.1394238890. The cubic root of 1252603533 is about 1077.9647119522.

The spelling of 1252603533 in words is "one billion, two hundred fifty-two million, six hundred three thousand, five hundred thirty-three".