542564636 has 6 divisors (see below), whose sum is σ = 949488120. Its totient is φ = 271282316.

The previous prime is 542564623. The next prime is 542564713. The reversal of 542564636 is 636465245.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 542564593 and 542564602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67820576 + ... + 67820583.

It is an arithmetic number, because the mean of its divisors is an integer number (158248020).

Almost surely, 2^542564636 is an apocalyptic number.

It is an amenable number.

542564636 is a deficient number, since it is larger than the sum of its proper divisors (406923484).

542564636 is a wasteful number, since it uses less digits than its factorization.

542564636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135641163 (or 135641161 counting only the distinct ones).

The product of its digits is 518400, while the sum is 41.

The square root of 542564636 is about 23293.0168934812. The cubic root of 542564636 is about 815.6124148535.

The spelling of 542564636 in words is "five hundred forty-two million, five hundred sixty-four thousand, six hundred thirty-six".