542006771 has 4 divisors (see below), whose sum is σ = 542453352. Its totient is φ = 541560192.

The previous prime is 542006743. The next prime is 542006789. The reversal of 542006771 is 177600245.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177600245 = 5 ⋅35520049.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-542006771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542006741) 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, 221465 + ... + 223898.

It is an arithmetic number, because the mean of its divisors is an integer number (135613338).

Almost surely, 2^542006771 is an apocalyptic number.

542006771 is a deficient number, since it is larger than the sum of its proper divisors (446581).

542006771 is a wasteful number, since it uses less digits than its factorization.

542006771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446580.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 542006771 is about 23281.0388728682. The cubic root of 542006771 is about 815.3327814096.

The spelling of 542006771 in words is "five hundred forty-two million, six thousand, seven hundred seventy-one".