542251551111 has 16 divisors (see below), whose sum is σ = 733963440000. Its totient is φ = 356022852768.

The previous prime is 542251551043. The next prime is 542251551167. The reversal of 542251551111 is 111155152245.

It is a happy number.

It is not a de Polignac number, because 542251551111 - 2⁷ = 542251550983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (542251551511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 561265 + ... + 1183013.

It is an arithmetic number, because the mean of its divisors is an integer number (45872715000).

Almost surely, 2^542251551111 is an apocalyptic number.

542251551111 is a deficient number, since it is larger than the sum of its proper divisors (191711888889).

542251551111 is a wasteful number, since it uses less digits than its factorization.

542251551111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626158.

The product of its digits is 10000, while the sum is 33.

The spelling of 542251551111 in words is "five hundred forty-two billion, two hundred fifty-one million, five hundred fifty-one thousand, one hundred eleven".