542257807 has 8 divisors (see below), whose sum is σ = 667394336. Its totient is φ = 429039072.

The previous prime is 542257801. The next prime is 542257813. The reversal of 542257807 is 708752245.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (542257801) and next prime (542257813).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 542257807 - 2³ = 542257799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 542257807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542257801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2979348 + ... + 2979529.

It is an arithmetic number, because the mean of its divisors is an integer number (83424292).

Almost surely, 2^542257807 is an apocalyptic number.

542257807 is a deficient number, since it is larger than the sum of its proper divisors (125136529).

542257807 is a wasteful number, since it uses less digits than its factorization.

542257807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958897.

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 542257807 is about 23286.4296748128. The cubic root of 542257807 is about 815.4586385634.

The spelling of 542257807 in words is "five hundred forty-two million, two hundred fifty-seven thousand, eight hundred seven".