542654865 has 48 divisors (see below), whose sum is σ = 954954000. Its totient is φ = 285037056.

The previous prime is 542654851. The next prime is 542654897. The reversal of 542654865 is 568456245.

542654865 is a `hidden beast` number, since 5 + 42 + 6 + 548 + 65 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 7935489 + 534719376 = 2817^2 + 23124^2 .

It is not a de Polignac number, because 542654865 - 2⁷ = 542654737 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 542654865.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1554711 + ... + 1555059.

It is an arithmetic number, because the mean of its divisors is an integer number (19894875).

Almost surely, 2^542654865 is an apocalyptic number.

It is an amenable number.

542654865 is a deficient number, since it is larger than the sum of its proper divisors (412299135).

542654865 is a wasteful number, since it uses less digits than its factorization.

542654865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786 (or 783 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 45.

The square root of 542654865 is about 23294.9536380736. The cubic root of 542654865 is about 815.6576247134.

The spelling of 542654865 in words is "five hundred forty-two million, six hundred fifty-four thousand, eight hundred sixty-five".