541550281801 has 3 divisors (see below), whose sum is σ = 541551017703. Its totient is φ = 541549545900.

The previous prime is 541550281709. The next prime is 541550281829. The reversal of 541550281801 is 108182055145.

It is a happy number.

The square root of 541550281801 is 735901.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 82110329401 + 459439952400 = 286549^2 + 677820^2 .

It is not a de Polignac number, because 541550281801 - 2⁷ = 541550281673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (541550281871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 367951 + ... + 1103851.

It is an arithmetic number, because the mean of its divisors is an integer number (180517005901).

Almost surely, 2^541550281801 is an apocalyptic number.

541550281801 is the 735901-st square number.

541550281801 is the 367951-st centered octagonal number.

It is an amenable number.

541550281801 is a deficient number, since it is larger than the sum of its proper divisors (735902).

541550281801 is an frugal number, since it uses more digits than its factorization.

541550281801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471802 (or 735901 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 40.

The spelling of 541550281801 in words is "five hundred forty-one billion, five hundred fifty million, two hundred eighty-one thousand, eight hundred one".