542450761 has 4 divisors (see below), whose sum is σ = 542497552. Its totient is φ = 542403972.

The previous prime is 542450723. The next prime is 542450801. The reversal of 542450761 is 167054245.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 542450761 - 2²⁵ = 508896329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (542450861) 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, 8386 + ... + 33988.

It is an arithmetic number, because the mean of its divisors is an integer number (135624388).

Almost surely, 2^542450761 is an apocalyptic number.

It is an amenable number.

542450761 is a deficient number, since it is larger than the sum of its proper divisors (46791).

542450761 is a wasteful number, since it uses less digits than its factorization.

542450761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46790.

The product of its (nonzero) digits is 33600, while the sum is 34.

The square root of 542450761 is about 23290.5723630829. The cubic root of 542450761 is about 815.5553498477. Note that the first 3 decimals are identical.

The spelling of 542450761 in words is "five hundred forty-two million, four hundred fifty thousand, seven hundred sixty-one".