542357865 has 48 divisors (see below), whose sum is σ = 1109062656. Its totient is φ = 239932800.

The previous prime is 542357861. The next prime is 542357867. The reversal of 542357865 is 568753245.

542357865 is a `hidden beast` number, since 54 + 23 + 578 + 6 + 5 = 666.

542357865 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 542357865 - 2² = 542357861 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 542357865.

It is not an unprimeable number, because it can be changed into a prime (542357861) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18006 + ... + 37535.

It is an arithmetic number, because the mean of its divisors is an integer number (23105472).

Almost surely, 2^542357865 is an apocalyptic number.

It is an amenable number.

542357865 is an abundant number, since it is smaller than the sum of its proper divisors (566704791).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

542357865 is a wasteful number, since it uses less digits than its factorization.

542357865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55590 (or 55587 counting only the distinct ones).

The product of its digits is 1008000, while the sum is 45.

The square root of 542357865 is about 23288.5779943731. The cubic root of 542357865 is about 815.5087919169.

The spelling of 542357865 in words is "five hundred forty-two million, three hundred fifty-seven thousand, eight hundred sixty-five".