1252263051 has 32 divisors (see below), whose sum is σ = 2016645120. Its totient is φ = 763398432.

The previous prime is 1252263043. The next prime is 1252263059. The reversal of 1252263051 is 1503622521.

It is a happy number.

1252263051 is a `hidden beast` number, since 1 + 2 + 5 + 22 + 630 + 5 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1252263043) and next prime (1252263059).

It is not a de Polignac number, because 1252263051 - 2³ = 1252263043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1252263059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20886 + ... + 54228.

It is an arithmetic number, because the mean of its divisors is an integer number (63020160).

Almost surely, 2^1252263051 is an apocalyptic number.

1252263051 is a deficient number, since it is larger than the sum of its proper divisors (764382069).

1252263051 is a wasteful number, since it uses less digits than its factorization.

1252263051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33472 (or 33466 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1252263051 is about 35387.3289610844. The cubic root of 1252263051 is about 1077.8670325106.

Adding to 1252263051 its reverse (1503622521), we get a palindrome (2755885572).

The spelling of 1252263051 in words is "one billion, two hundred fifty-two million, two hundred sixty-three thousand, fifty-one".