542636253625 has 32 divisors (see below), whose sum is σ = 717512009760. Its totient is φ = 408307609600.

The previous prime is 542636253611. The next prime is 542636253647. The reversal of 542636253625 is 526352636245.

It can be written as a sum of positive squares in 16 ways, for example, as 532486900089 + 10149353536 = 729717^2 + 100744^2 .

It is a de Polignac number, because none of the positive numbers 2^k-542636253625 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3217911 + ... + 3382339.

It is an arithmetic number, because the mean of its divisors is an integer number (22422250305).

Almost surely, 2^542636253625 is an apocalyptic number.

It is an amenable number.

542636253625 is a deficient number, since it is larger than the sum of its proper divisors (174875756135).

542636253625 is a wasteful number, since it uses less digits than its factorization.

542636253625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166014 (or 166004 counting only the distinct ones).

The product of its digits is 7776000, while the sum is 49.

The spelling of 542636253625 in words is "five hundred forty-two billion, six hundred thirty-six million, two hundred fifty-three thousand, six hundred twenty-five".