7425665247 has 64 divisors (see below), whose sum is σ = 13519134720. Its totient is φ = 3500323200.

The previous prime is 7425665243. The next prime is 7425665251.

7425665247 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (7425665243) and next prime (7425665251).

It is not a de Polignac number, because 7425665247 - 2² = 7425665243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7425665196 and 7425665205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7425665243) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 156222 + ... + 198132.

It is an arithmetic number, because the mean of its divisors is an integer number (211236480).

Almost surely, 2^7425665247 is an apocalyptic number.

7425665247 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

7425665247 is a deficient number, since it is larger than the sum of its proper divisors (6093469473).

7425665247 is a wasteful number, since it uses less digits than its factorization.

7425665247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42004.

The product of its digits is 2822400, while the sum is 48.

The square root of 7425665247 is about 86172.2997662242. The cubic root of 7425665247 is about 1950.9454321437.

The spelling of 7425665247 in words is "seven billion, four hundred twenty-five million, six hundred sixty-five thousand, two hundred forty-seven".