7255747513 has 16 divisors (see below), whose sum is σ = 8431303680. Its totient is φ = 6115283856.

The previous prime is 7255747469. The next prime is 7255747549. The reversal of 7255747513 is 3157475527.

It is a cyclic number.

It is not a de Polignac number, because 7255747513 - 2⁹ = 7255747001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7255747013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250308 + ... + 277786.

It is an arithmetic number, because the mean of its divisors is an integer number (526956480).

Almost surely, 2^7255747513 is an apocalyptic number.

It is an amenable number.

7255747513 is a deficient number, since it is larger than the sum of its proper divisors (1175556167).

7255747513 is a wasteful number, since it uses less digits than its factorization.

7255747513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28116.

The product of its digits is 1029000, while the sum is 46.

The square root of 7255747513 is about 85180.6757017107. The cubic root of 7255747513 is about 1935.9496315165.

The spelling of 7255747513 in words is "seven billion, two hundred fifty-five million, seven hundred forty-seven thousand, five hundred thirteen".