7257533131 has 2 divisors, whose sum is σ = 7257533132. Its totient is φ = 7257533130.

The previous prime is 7257533099. The next prime is 7257533177. The reversal of 7257533131 is 1313357527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7257533131 - 2⁵ = 7257533099 is a prime.

It is a super-2 number, since 2×7257533131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7257573131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3628766565 + 3628766566.

It is an arithmetic number, because the mean of its divisors is an integer number (3628766566).

Almost surely, 2^7257533131 is an apocalyptic number.

7257533131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7257533131 is an equidigital number, since it uses as much as digits as its factorization.

7257533131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66150, while the sum is 37.

The square root of 7257533131 is about 85191.1564130926. The cubic root of 7257533131 is about 1936.1084289832.

The spelling of 7257533131 in words is "seven billion, two hundred fifty-seven million, five hundred thirty-three thousand, one hundred thirty-one".