542546423 has 4 divisors (see below), whose sum is σ = 547813968. Its totient is φ = 537278880.

The previous prime is 542546419. The next prime is 542546453. The reversal of 542546423 is 324645245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324645245 = 5 ⋅64929049.

It is a cyclic number.

It is not a de Polignac number, because 542546423 - 2² = 542546419 is a prime.

It is a super-2 number, since 2×542546423² = 588713242220189858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542546453) 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, 2633618 + ... + 2633823.

It is an arithmetic number, because the mean of its divisors is an integer number (136953492).

Almost surely, 2^542546423 is an apocalyptic number.

542546423 is a deficient number, since it is larger than the sum of its proper divisors (5267545).

542546423 is a wasteful number, since it uses less digits than its factorization.

542546423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5267544.

The product of its digits is 115200, while the sum is 35.

The square root of 542546423 is about 23292.6259361198. The cubic root of 542546423 is about 815.6032884969.

The spelling of 542546423 in words is "five hundred forty-two million, five hundred forty-six thousand, four hundred twenty-three".