542615385 has 16 divisors (see below), whose sum is σ = 934968384. Its totient is φ = 267133632.

The previous prime is 542615377. The next prime is 542615399. The reversal of 542615385 is 583516245.

542615385 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 542615385 - 2³ = 542615377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1391127 + ... + 1391516.

It is an arithmetic number, because the mean of its divisors is an integer number (58435524).

Almost surely, 2^542615385 is an apocalyptic number.

It is an amenable number.

542615385 is a deficient number, since it is larger than the sum of its proper divisors (392352999).

542615385 is a wasteful number, since it uses less digits than its factorization.

542615385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782664.

The product of its digits is 144000, while the sum is 39.

The square root of 542615385 is about 23294.1062288296. The cubic root of 542615385 is about 815.6378436051.

The spelling of 542615385 in words is "five hundred forty-two million, six hundred fifteen thousand, three hundred eighty-five".