541531520 has 128 divisors (see below), whose sum is σ = 1339619040. Its totient is φ = 209240064.

The previous prime is 541531513. The next prime is 541531577. The reversal of 541531520 is 25135145.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 541531520.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3130154 + ... + 3130326.

Almost surely, 2^541531520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 541531520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (669809520).

541531520 is an abundant number, since it is smaller than the sum of its proper divisors (798087520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

541531520 is a wasteful number, since it uses less digits than its factorization.

541531520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 320 counting only the distinct ones).

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

The square root of 541531520 is about 23270.8298090120. The cubic root of 541531520 is about 815.0944073707.

Adding to 541531520 its reverse (25135145), we get a palindrome (566666665).

The spelling of 541531520 in words is "five hundred forty-one million, five hundred thirty-one thousand, five hundred twenty".