216425542 has 8 divisors (see below), whose sum is σ = 341724600. Its totient is φ = 102517344.

The previous prime is 216425533. The next prime is 216425551. The reversal of 216425542 is 245524612.

It is an interprime number because it is at equal distance from previous prime (216425533) and next prime (216425551).

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2847667 + ... + 2847742.

It is an arithmetic number, because the mean of its divisors is an integer number (42715575).

Almost surely, 2^216425542 is an apocalyptic number.

216425542 is a deficient number, since it is larger than the sum of its proper divisors (125299058).

216425542 is a wasteful number, since it uses less digits than its factorization.

216425542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5695430.

The product of its digits is 19200, while the sum is 31.

The square root of 216425542 is about 14711.4085661435. The cubic root of 216425542 is about 600.3937618998.

The spelling of 216425542 in words is "two hundred sixteen million, four hundred twenty-five thousand, five hundred forty-two".