542056202561 has 8 divisors (see below), whose sum is σ = 579101678880. Its totient is φ = 505862346528.

The previous prime is 542056202533. The next prime is 542056202591. The reversal of 542056202561 is 165202650245.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 542056202561 - 2²² = 542052008257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (542056202591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212903756 + ... + 212906301.

It is an arithmetic number, because the mean of its divisors is an integer number (72387709860).

Almost surely, 2^542056202561 is an apocalyptic number.

It is an amenable number.

542056202561 is a deficient number, since it is larger than the sum of its proper divisors (37045476319).

542056202561 is a wasteful number, since it uses less digits than its factorization.

542056202561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425810143.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 542056202561 in words is "five hundred forty-two billion, fifty-six million, two hundred two thousand, five hundred sixty-one".