1252025845 has 16 divisors (see below), whose sum is σ = 1776274560. Its totient is φ = 828926784.

The previous prime is 1252025833. The next prime is 1252025909. The reversal of 1252025845 is 5485202521.

It is not a de Polignac number, because 1252025845 - 2¹⁵ = 1251993077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1252025845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615747 + ... + 617776.

It is an arithmetic number, because the mean of its divisors is an integer number (111017160).

Almost surely, 2^1252025845 is an apocalyptic number.

It is an amenable number.

1252025845 is a deficient number, since it is larger than the sum of its proper divisors (524248715).

1252025845 is a wasteful number, since it uses less digits than its factorization.

1252025845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233564.

The product of its (nonzero) digits is 32000, while the sum is 34.

The square root of 1252025845 is about 35383.9772354663. The cubic root of 1252025845 is about 1077.7989710192.

The spelling of 1252025845 in words is "one billion, two hundred fifty-two million, twenty-five thousand, eight hundred forty-five".