542020625 has 10 divisors (see below), whose sum is σ = 677309754. Its totient is φ = 433616000.

The previous prime is 542020613. The next prime is 542020667. The reversal of 542020625 is 526020245.

It can be written as a sum of positive squares in 5 ways, for example, as 281165824 + 260854801 = 16768^2 + 16151^2 .

It is not a de Polignac number, because 542020625 - 2¹² = 542016529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542020594 and 542020603.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 432992 + ... + 434241.

Almost surely, 2^542020625 is an apocalyptic number.

It is an amenable number.

542020625 is a deficient number, since it is larger than the sum of its proper divisors (135289129).

542020625 is an frugal number, since it uses more digits than its factorization.

542020625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867253 (or 867238 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 542020625 is about 23281.3364092356. The cubic root of 542020625 is about 815.3397281396.

The spelling of 542020625 in words is "five hundred forty-two million, twenty thousand, six hundred twenty-five".