542253561533 has 4 divisors (see below), whose sum is σ = 543206556060. Its totient is φ = 541300567008.

The previous prime is 542253561523. The next prime is 542253561547. The reversal of 542253561533 is 335165352245.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 335165352245 = 5 ⋅67033070449.

It can be written as a sum of positive squares in 2 ways, for example, as 263930842564 + 278322718969 = 513742^2 + 527563^2 .

It is a cyclic number.

It is not a de Polignac number, because 542253561533 - 2¹² = 542253557437 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 (542253561523) 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, 476496410 + ... + 476497547.

It is an arithmetic number, because the mean of its divisors is an integer number (135801639015).

Almost surely, 2^542253561533 is an apocalyptic number.

It is an amenable number.

542253561533 is a deficient number, since it is larger than the sum of its proper divisors (952994527).

542253561533 is an equidigital number, since it uses as much as digits as its factorization.

542253561533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952994526.

The product of its digits is 1620000, while the sum is 44.

The spelling of 542253561533 in words is "five hundred forty-two billion, two hundred fifty-three million, five hundred sixty-one thousand, five hundred thirty-three".