425055021 has 8 divisors (see below), whose sum is σ = 566916000. Its totient is φ = 283282032.

The previous prime is 425055013. The next prime is 425055031. The reversal of 425055021 is 120550524.

It is a happy number.

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

It is not a de Polignac number, because 425055021 - 2³ = 425055013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 425054982 and 425055000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425055031) 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, 9750 + ... + 30743.

It is an arithmetic number, because the mean of its divisors is an integer number (70864500).

Almost surely, 2^425055021 is an apocalyptic number.

It is an amenable number.

425055021 is a deficient number, since it is larger than the sum of its proper divisors (141860979).

425055021 is a wasteful number, since it uses less digits than its factorization.

425055021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43995.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 425055021 is about 20616.8625401636. The cubic root of 425055021 is about 751.8797417144.

The spelling of 425055021 in words is "four hundred twenty-five million, fifty-five thousand, twenty-one".