53122531 has 8 divisors (see below), whose sum is σ = 66230784. Its totient is φ = 41394120.

The previous prime is 53122529. The next prime is 53122583. The reversal of 53122531 is 13522135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53122531 - 2¹ = 53122529 is a prime.

It is a super-3 number, since 3×53122531³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53122031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344875 + ... + 345028.

It is an arithmetic number, because the mean of its divisors is an integer number (8278848).

Almost surely, 2^53122531 is an apocalyptic number.

53122531 is a deficient number, since it is larger than the sum of its proper divisors (13108253).

53122531 is a wasteful number, since it uses less digits than its factorization.

53122531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689921.

The product of its digits is 900, while the sum is 22.

The square root of 53122531 is about 7288.5204945860. The cubic root of 53122531 is about 375.9178252403.

Adding to 53122531 its reverse (13522135), we get a palindrome (66644666).

The spelling of 53122531 in words is "fifty-three million, one hundred twenty-two thousand, five hundred thirty-one".