542351144545250 has 16 divisors (see below), whose sum is σ = 1015281342589176. Its totient is φ = 216940457818000.

The previous prime is 542351144545103. The next prime is 542351144545267. The reversal of 542351144545250 is 52545441153245.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 259337108978809 + 283014035566441 = 16103947^2 + 16823021^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1084702288841 + ... + 1084702289340.

Almost surely, 2^{542351144545250} is an apocalyptic number.

542351144545250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

542351144545250 is a deficient number, since it is larger than the sum of its proper divisors (472930198043926).

542351144545250 is a wasteful number, since it uses less digits than its factorization.

542351144545250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169404578198 (or 2169404578188 counting only the distinct ones).

The product of its (nonzero) digits is 9600000, while the sum is 50.

Adding to 542351144545250 its reverse (52545441153245), we get a palindrome (594896585698495).

The spelling of 542351144545250 in words is "five hundred forty-two trillion, three hundred fifty-one billion, one hundred forty-four million, five hundred forty-five thousand, two hundred fifty".