1252525151 has 4 divisors (see below), whose sum is σ = 1255745400. Its totient is φ = 1249304904.

The previous prime is 1252525117. The next prime is 1252525189. The reversal of 1252525151 is 1515252521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1515252521 = 269 ⋅5632909.

It is a cyclic number.

It is not a de Polignac number, because 1252525151 - 2¹⁴ = 1252508767 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252525111) 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 3 ways as a sum of consecutive naturals, for example, 1609541 + ... + 1610318.

It is an arithmetic number, because the mean of its divisors is an integer number (313936350).

Almost surely, 2^1252525151 is an apocalyptic number.

1252525151 is a deficient number, since it is larger than the sum of its proper divisors (3220249).

1252525151 is an equidigital number, since it uses as much as digits as its factorization.

1252525151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220248.

The product of its digits is 5000, while the sum is 29.

The square root of 1252525151 is about 35391.0320702858. The cubic root of 1252525151 is about 1077.9422268402.

Adding to 1252525151 its reverse (1515252521), we get a palindrome (2767777672).

The spelling of 1252525151 in words is "one billion, two hundred fifty-two million, five hundred twenty-five thousand, one hundred fifty-one".