422553831 has 16 divisors (see below), whose sum is σ = 659597568. Its totient is φ = 235569600.

The previous prime is 422553827. The next prime is 422553841. The reversal of 422553831 is 138355224.

It is not a de Polignac number, because 422553831 - 2² = 422553827 is a prime.

It is a super-2 number, since 2×422553831² = 357103480185553122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 422553792 and 422553801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422553841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244525 + ... + 246246.

It is an arithmetic number, because the mean of its divisors is an integer number (41224848).

Almost surely, 2^422553831 is an apocalyptic number.

422553831 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

422553831 is a deficient number, since it is larger than the sum of its proper divisors (237043737).

422553831 is a wasteful number, since it uses less digits than its factorization.

422553831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490822.

The product of its digits is 28800, while the sum is 33.

The square root of 422553831 is about 20556.1141999163. The cubic root of 422553831 is about 750.4020546531.

The spelling of 422553831 in words is "four hundred twenty-two million, five hundred fifty-three thousand, eight hundred thirty-one".