422551025 has 48 divisors (see below), whose sum is σ = 590587200. Its totient is φ = 297749760.

The previous prime is 422550991. The next prime is 422551027. The reversal of 422551025 is 520155224.

It is not a de Polignac number, because 422551025 - 2⁸ = 422550769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 422550985 and 422551003.

It is not an unprimeable number, because it can be changed into a prime (422551027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1008266 + ... + 1008684.

It is an arithmetic number, because the mean of its divisors is an integer number (12303900).

Almost surely, 2^422551025 is an apocalyptic number.

It is an amenable number.

422551025 is a deficient number, since it is larger than the sum of its proper divisors (168036175).

422551025 is a wasteful number, since it uses less digits than its factorization.

422551025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 422551025 is about 20556.0459476038. The cubic root of 422551025 is about 750.4003936160.

The spelling of 422551025 in words is "four hundred twenty-two million, five hundred fifty-one thousand, twenty-five".