3257651465425 has 24 divisors (see below), whose sum is σ = 4616831736000. Its totient is φ = 2233685455680.

The previous prime is 3257651465423. The next prime is 3257651465473. The reversal of 3257651465425 is 5245641567523.

It is not a de Polignac number, because 3257651465425 - 2¹ = 3257651465423 is a prime.

It is a super-2 number, since 2×3257651465425² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3257651465423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2447991 + ... + 3536659.

It is an arithmetic number, because the mean of its divisors is an integer number (192367989000).

Almost surely, 2^{3257651465425} is an apocalyptic number.

3257651465425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3257651465425 is a deficient number, since it is larger than the sum of its proper divisors (1359180270575).

3257651465425 is a wasteful number, since it uses less digits than its factorization.

3257651465425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105785 (or 1105780 counting only the distinct ones).

The product of its digits is 30240000, while the sum is 55.

The spelling of 3257651465425 in words is "three trillion, two hundred fifty-seven billion, six hundred fifty-one million, four hundred sixty-five thousand, four hundred twenty-five".