1001252526431 has 4 divisors (see below), whose sum is σ = 1001622404472. Its totient is φ = 1000882648392.

The previous prime is 1001252526413. The next prime is 1001252526457. The reversal of 1001252526431 is 1346252521001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001252526431 is a prime.

It is a super-2 number, since 2×1001252526431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001252526401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184934960 + ... + 184940373.

It is an arithmetic number, because the mean of its divisors is an integer number (250405601118).

Almost surely, 2^{1001252526431} is an apocalyptic number.

1001252526431 is a deficient number, since it is larger than the sum of its proper divisors (369878041).

1001252526431 is an equidigital number, since it uses as much as digits as its factorization.

1001252526431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369878040.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 1001252526431 in words is "one trillion, one billion, two hundred fifty-two million, five hundred twenty-six thousand, four hundred thirty-one".