2665432531 has 2 divisors, whose sum is σ = 2665432532. Its totient is φ = 2665432530.

The previous prime is 2665432493. The next prime is 2665432559. The reversal of 2665432531 is 1352345662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2665432531 - 2⁷ = 2665432403 is a prime.

It is a super-2 number, since 2×2665432531² = 14209061154626131922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2665432571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1332716265 + 1332716266.

It is an arithmetic number, because the mean of its divisors is an integer number (1332716266).

Almost surely, 2^2665432531 is an apocalyptic number.

2665432531 is a deficient number, since it is larger than the sum of its proper divisors (1).

2665432531 is an equidigital number, since it uses as much as digits as its factorization.

2665432531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 37.

The square root of 2665432531 is about 51627.8270993463. The cubic root of 2665432531 is about 1386.5085902215.

The spelling of 2665432531 in words is "two billion, six hundred sixty-five million, four hundred thirty-two thousand, five hundred thirty-one".