425440052510021 has 8 divisors (see below), whose sum is σ = 429476978200320. Its totient is φ = 421404253679808.

The previous prime is 425440052510017. The next prime is 425440052510027. The reversal of 425440052510021 is 120015250044524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425440052510021 - 2² = 425440052510017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425440052510027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280956341 + ... + 282466538.

It is an arithmetic number, because the mean of its divisors is an integer number (53684622275040).

Almost surely, 2^{425440052510021} is an apocalyptic number.

It is an amenable number.

425440052510021 is a deficient number, since it is larger than the sum of its proper divisors (4036925690299).

425440052510021 is a wasteful number, since it uses less digits than its factorization.

425440052510021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563430043.

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 425440052510021 in words is "four hundred twenty-five trillion, four hundred forty billion, fifty-two million, five hundred ten thousand, twenty-one".