542052510551 has 4 divisors (see below), whose sum is σ = 543660975312. Its totient is φ = 540444045792.

The previous prime is 542052510539. The next prime is 542052510553. The reversal of 542052510551 is 155015250245.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 542052510551 - 2¹⁸ = 542052248407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542052510553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 804231875 + ... + 804232548.

It is an arithmetic number, because the mean of its divisors is an integer number (135915243828).

Almost surely, 2^542052510551 is an apocalyptic number.

542052510551 is a deficient number, since it is larger than the sum of its proper divisors (1608464761).

542052510551 is a wasteful number, since it uses less digits than its factorization.

542052510551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1608464760.

The product of its (nonzero) digits is 50000, while the sum is 35.

Adding to 542052510551 its reverse (155015250245), we get a palindrome (697067760796).

The spelling of 542052510551 in words is "five hundred forty-two billion, fifty-two million, five hundred ten thousand, five hundred fifty-one".