542305554021 has 192 divisors, whose sum is σ = 1012290379776. Its totient is φ = 271636992000.

The previous prime is 542305553969. The next prime is 542305554023. The reversal of 542305554021 is 120455503245.

542305554021 is a `hidden beast` number, since 5 + 42 + 3 + 0 + 55 + 540 + 21 = 666.

It is not a de Polignac number, because 542305554021 - 2⁷ = 542305553893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542305554023) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1161253630 + ... + 1161254096.

It is an arithmetic number, because the mean of its divisors is an integer number (5272345728).

Almost surely, 2^542305554021 is an apocalyptic number.

It is an amenable number.

542305554021 is a deficient number, since it is larger than the sum of its proper divisors (469984825755).

542305554021 is a wasteful number, since it uses less digits than its factorization.

542305554021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992 (or 989 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 36.

The spelling of 542305554021 in words is "five hundred forty-two billion, three hundred five million, five hundred fifty-four thousand, twenty-one".