425405142025525 has 12 divisors (see below), whose sum is σ = 527637252831264. Its totient is φ = 340237096382000.

The previous prime is 425405142025477. The next prime is 425405142025537. The reversal of 425405142025525 is 525520241504524.

It is a happy number.

It is not a de Polignac number, because 425405142025525 - 2³⁹ = 424855386211637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2175331231 + ... + 2175526780.

It is an arithmetic number, because the mean of its divisors is an integer number (43969771069272).

Almost surely, 2^{425405142025525} is an apocalyptic number.

It is an amenable number.

425405142025525 is a deficient number, since it is larger than the sum of its proper divisors (102232110805739).

425405142025525 is a wasteful number, since it uses less digits than its factorization.

425405142025525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4350861932 (or 4350861927 counting only the distinct ones).

The product of its (nonzero) digits is 3200000, while the sum is 46.

The spelling of 425405142025525 in words is "four hundred twenty-five trillion, four hundred five billion, one hundred forty-two million, twenty-five thousand, five hundred twenty-five".