1252753775 has 24 divisors (see below), whose sum is σ = 1911898464. Its totient is φ = 792950400.

The previous prime is 1252753769. The next prime is 1252753823. The reversal of 1252753775 is 5773572521.

It is not a de Polignac number, because 1252753775 - 2⁴ = 1252753759 is a prime.

It is a super-3 number, since 3×1252753775³ (a number of 28 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 273056 + ... + 277605.

It is an arithmetic number, because the mean of its divisors is an integer number (79662436).

Almost surely, 2^1252753775 is an apocalyptic number.

1252753775 is a deficient number, since it is larger than the sum of its proper divisors (659144689).

1252753775 is a wasteful number, since it uses less digits than its factorization.

1252753775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550691 (or 550686 counting only the distinct ones).

The product of its digits is 514500, while the sum is 44.

The square root of 1252753775 is about 35394.2618937025. The cubic root of 1252753775 is about 1078.0078086159.

The spelling of 1252753775 in words is "one billion, two hundred fifty-two million, seven hundred fifty-three thousand, seven hundred seventy-five".