542551005 has 24 divisors (see below), whose sum is σ = 995742072. Its totient is φ = 272338944.

The previous prime is 542550977. The next prime is 542551043. The reversal of 542551005 is 500155245.

It can be written as a sum of positive squares in 4 ways, for example, as 284563161 + 257987844 = 16869^2 + 16062^2 .

It is not a de Polignac number, because 542551005 - 2⁶ = 542550941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542551005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 353844 + ... + 355373.

It is an arithmetic number, because the mean of its divisors is an integer number (41489253).

Almost surely, 2^542551005 is an apocalyptic number.

It is an amenable number.

542551005 is a deficient number, since it is larger than the sum of its proper divisors (453191067).

542551005 is a wasteful number, since it uses less digits than its factorization.

542551005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709245 (or 709242 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 542551005 is about 23292.7242932208. The cubic root of 542551005 is about 815.6055845116.

The spelling of 542551005 in words is "five hundred forty-two million, five hundred fifty-one thousand, five".