1252673563 has 8 divisors (see below), whose sum is σ = 1279904832. Its totient is φ = 1225466496.

The previous prime is 1252673561. The next prime is 1252673573. The reversal of 1252673563 is 3653762521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1252673563 - 2¹ = 1252673561 is a prime.

It is a super-3 number, since 3×1252673563³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252673561) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 132531 + ... + 141667.

It is an arithmetic number, because the mean of its divisors is an integer number (159988104).

Almost surely, 2^1252673563 is an apocalyptic number.

1252673563 is a deficient number, since it is larger than the sum of its proper divisors (27231269).

1252673563 is an equidigital number, since it uses as much as digits as its factorization.

1252673563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12101.

The product of its digits is 226800, while the sum is 40.

The square root of 1252673563 is about 35393.1287540393. The cubic root of 1252673563 is about 1077.9848003681.

The spelling of 1252673563 in words is "one billion, two hundred fifty-two million, six hundred seventy-three thousand, five hundred sixty-three".