7545423253 has 2 divisors, whose sum is σ = 7545423254. Its totient is φ = 7545423252.

The previous prime is 7545423239. The next prime is 7545423271. The reversal of 7545423253 is 3523245457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5325788484 + 2219634769 = 72978^2 + 47113^2 .

It is an emirp because it is prime and its reverse (3523245457) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7545423253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7545423553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3772711626 + 3772711627.

It is an arithmetic number, because the mean of its divisors is an integer number (3772711627).

Almost surely, 2^7545423253 is an apocalyptic number.

It is an amenable number.

7545423253 is a deficient number, since it is larger than the sum of its proper divisors (1).

7545423253 is an equidigital number, since it uses as much as digits as its factorization.

7545423253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 40.

The square root of 7545423253 is about 86864.3957729518. The cubic root of 7545423253 is about 1961.3775590113.

The spelling of 7545423253 in words is "seven billion, five hundred forty-five million, four hundred twenty-three thousand, two hundred fifty-three".