531255451 has 2 divisors, whose sum is σ = 531255452. Its totient is φ = 531255450.

The previous prime is 531255433. The next prime is 531255499. The reversal of 531255451 is 154552135.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 531255451 - 2²¹ = 529158299 is a prime.

It is not a weakly prime, because it can be changed into another prime (531655451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265627725 + 265627726.

It is an arithmetic number, because the mean of its divisors is an integer number (265627726).

Almost surely, 2^531255451 is an apocalyptic number.

531255451 is a deficient number, since it is larger than the sum of its proper divisors (1).

531255451 is an equidigital number, since it uses as much as digits as its factorization.

531255451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15000, while the sum is 31.

The square root of 531255451 is about 23048.9793917214. The cubic root of 531255451 is about 809.9057203686.

The spelling of 531255451 in words is "five hundred thirty-one million, two hundred fifty-five thousand, four hundred fifty-one".