541023551 has 4 divisors (see below), whose sum is σ = 543268704. Its totient is φ = 538778400.

The previous prime is 541023517. The next prime is 541023559. The reversal of 541023551 is 155320145.

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 541023551 - 2¹⁰ = 541022527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 541023551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (541023559) 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, 1122215 + ... + 1122696.

It is an arithmetic number, because the mean of its divisors is an integer number (135817176).

Almost surely, 2^541023551 is an apocalyptic number.

541023551 is a deficient number, since it is larger than the sum of its proper divisors (2245153).

541023551 is a wasteful number, since it uses less digits than its factorization.

541023551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245152.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 541023551 is about 23259.9129620040. The cubic root of 541023551 is about 814.8394685514.

Adding to 541023551 its reverse (155320145), we get a palindrome (696343696).

The spelling of 541023551 in words is "five hundred forty-one million, twenty-three thousand, five hundred fifty-one".