542857637 has 4 divisors (see below), whose sum is σ = 620408736. Its totient is φ = 465306540.

The previous prime is 542857631. The next prime is 542857639. The reversal of 542857637 is 736758245.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 542857637 - 2⁶ = 542857573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 542857591 and 542857600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542857631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38775539 + ... + 38775552.

It is an arithmetic number, because the mean of its divisors is an integer number (155102184).

Almost surely, 2^542857637 is an apocalyptic number.

It is an amenable number.

542857637 is a deficient number, since it is larger than the sum of its proper divisors (77551099).

542857637 is an equidigital number, since it uses as much as digits as its factorization.

542857637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77551098.

The product of its digits is 1411200, while the sum is 47.

The square root of 542857637 is about 23299.3055046712. The cubic root of 542857637 is about 815.7592067331.

The spelling of 542857637 in words is "five hundred forty-two million, eight hundred fifty-seven thousand, six hundred thirty-seven".