421254550 has 48 divisors (see below), whose sum is σ = 797707872. Its totient is φ = 165484800.

The previous prime is 421254539. The next prime is 421254553. The reversal of 421254550 is 55452124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421254553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 808290 + ... + 808810.

It is an arithmetic number, because the mean of its divisors is an integer number (16618914).

Almost surely, 2^421254550 is an apocalyptic number.

421254550 is a deficient number, since it is larger than the sum of its proper divisors (376453322).

421254550 is a wasteful number, since it uses less digits than its factorization.

421254550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 421254550 is about 20524.4865952842. The cubic root of 421254550 is about 749.6321455329.

The spelling of 421254550 in words is "four hundred twenty-one million, two hundred fifty-four thousand, five hundred fifty".