542226623525 has 12 divisors (see below), whose sum is σ = 672736899300. Its totient is φ = 433538791680.

The previous prime is 542226623513. The next prime is 542226623557. The reversal of 542226623525 is 525326622245.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2480737249 + 539745886276 = 49807^2 + 734674^2 .

It is not a de Polignac number, because 542226623525 - 2²⁸ = 541958188069 is a prime.

It is a super-2 number, since 2×542226623525² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6017060 + ... + 6106509.

It is an arithmetic number, because the mean of its divisors is an integer number (56061408275).

Almost surely, 2^542226623525 is an apocalyptic number.

It is an amenable number.

542226623525 is a deficient number, since it is larger than the sum of its proper divisors (130510275775).

542226623525 is a wasteful number, since it uses less digits than its factorization.

542226623525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12125368 (or 12125363 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 44.

The spelling of 542226623525 in words is "five hundred forty-two billion, two hundred twenty-six million, six hundred twenty-three thousand, five hundred twenty-five".