531051541 has 4 divisors (see below), whose sum is σ = 531110284. Its totient is φ = 530992800.

The previous prime is 531051517. The next prime is 531051583. The reversal of 531051541 is 145150135.

It is a happy 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 2 ways, for example, as 162027441 + 369024100 = 12729^2 + 19210^2 .

It is a cyclic number.

It is not a de Polignac number, because 531051541 - 2¹³ = 531043349 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 (531051841) 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, 12630 + ... + 34951.

It is an arithmetic number, because the mean of its divisors is an integer number (132777571).

Almost surely, 2^531051541 is an apocalyptic number.

It is an amenable number.

531051541 is a deficient number, since it is larger than the sum of its proper divisors (58743).

531051541 is a wasteful number, since it uses less digits than its factorization.

531051541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58742.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 531051541 is about 23044.5555609129. Note that the first 4 decimals coincide. The cubic root of 531051541 is about 809.8020859751.

The spelling of 531051541 in words is "five hundred thirty-one million, fifty-one thousand, five hundred forty-one".