542820615 has 16 divisors (see below), whose sum is σ = 869434368. Its totient is φ = 289197216.

The previous prime is 542820611. The next prime is 542820617. The reversal of 542820615 is 516028245.

It is not a de Polignac number, because 542820615 - 2² = 542820611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542820611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4207 + ... + 33216.

It is an arithmetic number, because the mean of its divisors is an integer number (54339648).

Almost surely, 2^542820615 is an apocalyptic number.

542820615 is a deficient number, since it is larger than the sum of its proper divisors (326613753).

542820615 is a wasteful number, since it uses less digits than its factorization.

542820615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38398.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 542820615 is about 23298.5110039247. The cubic root of 542820615 is about 815.7406618318.

The spelling of 542820615 in words is "five hundred forty-two million, eight hundred twenty thousand, six hundred fifteen".