422554315243550 has 36 divisors (see below), whose sum is σ = 914269561273080. Its totient is φ = 144875765225520.

The previous prime is 422554315243547. The next prime is 422554315243561. The reversal of 422554315243550 is 55342513455224.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 86235572090 + ... + 86235576989.

It is an arithmetic number, because the mean of its divisors is an integer number (25396376702030).

Almost surely, 2^{422554315243550} is an apocalyptic number.

422554315243550 is an abundant number, since it is smaller than the sum of its proper divisors (491715246029530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422554315243550 is a wasteful number, since it uses less digits than its factorization.

422554315243550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172471149105 (or 172471149093 counting only the distinct ones).

The product of its (nonzero) digits is 14400000, while the sum is 50.

Adding to 422554315243550 its reverse (55342513455224), we get a palindrome (477896828698774).

The spelling of 422554315243550 in words is "four hundred twenty-two trillion, five hundred fifty-four billion, three hundred fifteen million, two hundred forty-three thousand, five hundred fifty".