423372550 has 24 divisors (see below), whose sum is σ = 788739696. Its totient is φ = 169076640.

The previous prime is 423372541. The next prime is 423372553. The reversal of 423372550 is 55273324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423372553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26167 + ... + 39133.

It is an arithmetic number, because the mean of its divisors is an integer number (32864154).

Almost surely, 2^423372550 is an apocalyptic number.

423372550 is a deficient number, since it is larger than the sum of its proper divisors (365367146).

423372550 is a wasteful number, since it uses less digits than its factorization.

423372550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13632 (or 13627 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 31.

The square root of 423372550 is about 20576.0188083118. The cubic root of 423372550 is about 750.8863890436.

The spelling of 423372550 in words is "four hundred twenty-three million, three hundred seventy-two thousand, five hundred fifty".