7257116425 has 24 divisors (see below), whose sum is σ = 9873914904. Its totient is φ = 5257973760.

The previous prime is 7257116411. The next prime is 7257116441. The reversal of 7257116425 is 5246117527.

It can be written as a sum of positive squares in 12 ways, for example, as 646125561 + 6610990864 = 25419^2 + 81308^2 .

It is not a de Polignac number, because 7257116425 - 2⁵ = 7257116393 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 193432 + ... + 227881.

It is an arithmetic number, because the mean of its divisors is an integer number (411413121).

Almost surely, 2^7257116425 is an apocalyptic number.

It is an amenable number.

7257116425 is a deficient number, since it is larger than the sum of its proper divisors (2616798479).

7257116425 is a wasteful number, since it uses less digits than its factorization.

7257116425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421389 (or 421384 counting only the distinct ones).

The product of its digits is 117600, while the sum is 40.

The square root of 7257116425 is about 85188.7106663788. The cubic root of 7257116425 is about 1936.0713730752.

The spelling of 7257116425 in words is "seven billion, two hundred fifty-seven million, one hundred sixteen thousand, four hundred twenty-five".