5201261531 has 4 divisors (see below), whose sum is σ = 5208188064. Its totient is φ = 5194335000.

The previous prime is 5201261521. The next prime is 5201261557. The reversal of 5201261531 is 1351621025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5201261531 is a prime.

It is a super-2 number, since 2×5201261531² = 54106243027720927922, which contains 22 as substring.

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 5201261531.

It is not an unprimeable number, because it can be changed into a prime (5201261521) 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, 3462140 + ... + 3463641.

It is an arithmetic number, because the mean of its divisors is an integer number (1302047016).

Almost surely, 2^5201261531 is an apocalyptic number.

5201261531 is a deficient number, since it is larger than the sum of its proper divisors (6926533).

5201261531 is an equidigital number, since it uses as much as digits as its factorization.

5201261531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6926532.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 5201261531 is about 72119.7721224908. The cubic root of 5201261531 is about 1732.6183003133.

Adding to 5201261531 its reverse (1351621025), we get a palindrome (6552882556).

The spelling of 5201261531 in words is "five billion, two hundred one million, two hundred sixty-one thousand, five hundred thirty-one".