542406055545 has 48 divisors (see below), whose sum is σ = 963621914112. Its totient is φ = 282089606400.

The previous prime is 542406055501. The next prime is 542406055561. The reversal of 542406055545 is 545550604245.

542406055545 is a `hidden beast` number, since 5 + 4 + 2 + 40 + 60 + 5 + 5 + 545 = 666.

It is not a de Polignac number, because 542406055545 - 2⁶ = 542406055481 is a prime.

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 542406055545.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 943645 + ... + 1405445.

It is an arithmetic number, because the mean of its divisors is an integer number (20075456544).

Almost surely, 2^542406055545 is an apocalyptic number.

It is an amenable number.

542406055545 is a deficient number, since it is larger than the sum of its proper divisors (421215858567).

542406055545 is a wasteful number, since it uses less digits than its factorization.

542406055545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462462 (or 462459 counting only the distinct ones).

The product of its (nonzero) digits is 2400000, while the sum is 45.

The spelling of 542406055545 in words is "five hundred forty-two billion, four hundred six million, fifty-five thousand, five hundred forty-five".