542250247 has 24 divisors (see below), whose sum is σ = 686292768. Its totient is φ = 419358720.

The previous prime is 542250239. The next prime is 542250271. The reversal of 542250247 is 742052245.

It is not a de Polignac number, because 542250247 - 2³ = 542250239 is a prime.

It is a super-2 number, since 2×542250247² = 588070660743122018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542250287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113703 + ... + 118375.

It is an arithmetic number, because the mean of its divisors is an integer number (28595532).

Almost surely, 2^542250247 is an apocalyptic number.

542250247 is a deficient number, since it is larger than the sum of its proper divisors (144042521).

542250247 is a wasteful number, since it uses less digits than its factorization.

542250247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4839 (or 4828 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 31.

The square root of 542250247 is about 23286.2673479457. The cubic root of 542250247 is about 815.4548489171.

The spelling of 542250247 in words is "five hundred forty-two million, two hundred fifty thousand, two hundred forty-seven".