7487455253 has 2 divisors, whose sum is σ = 7487455254. Its totient is φ = 7487455252.

The previous prime is 7487455247. The next prime is 7487455271. The reversal of 7487455253 is 3525547847.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5684858404 + 1802596849 = 75398^2 + 42457^2 .

It is a cyclic number.

It is not a de Polignac number, because 7487455253 - 2¹² = 7487451157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7487455223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3743727626 + 3743727627.

It is an arithmetic number, because the mean of its divisors is an integer number (3743727627).

Almost surely, 2^7487455253 is an apocalyptic number.

It is an amenable number.

7487455253 is a deficient number, since it is larger than the sum of its proper divisors (1).

7487455253 is an equidigital number, since it uses as much as digits as its factorization.

7487455253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704000, while the sum is 50.

The square root of 7487455253 is about 86530.0829365141. The cubic root of 7487455253 is about 1956.3418554480.

The spelling of 7487455253 in words is "seven billion, four hundred eighty-seven million, four hundred fifty-five thousand, two hundred fifty-three".