542477 has 4 divisors (see below), whose sum is σ = 584220. Its totient is φ = 500736.

The previous prime is 542467. The next prime is 542483. The reversal of 542477 is 774245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 774245 = 5 ⋅154849.

It can be written as a sum of positive squares in 2 ways, for example, as 51076 + 491401 = 226^2 + 701^2 .

It is a cyclic number.

It is not a de Polignac number, because 542477 - 2⁴ = 542461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542447) 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, 20852 + ... + 20877.

It is an arithmetic number, because the mean of its divisors is an integer number (146055).

2⁵⁴²⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

542477 is a deficient number, since it is larger than the sum of its proper divisors (41743).

542477 is a wasteful number, since it uses less digits than its factorization.

542477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41742.

The product of its digits is 7840, while the sum is 29.

The square root of 542477 is about 736.5303795500. The cubic root of 542477 is about 81.5568499436.

The spelling of 542477 in words is "five hundred forty-two thousand, four hundred seventy-seven".