421062550 has 12 divisors (see below), whose sum is σ = 783176436. Its totient is φ = 168425000.

The previous prime is 421062533. The next prime is 421062559. The reversal of 421062550 is 55260124.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421062559) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4210576 + ... + 4210675.

It is an arithmetic number, because the mean of its divisors is an integer number (65264703).

Almost surely, 2^421062550 is an apocalyptic number.

421062550 is a deficient number, since it is larger than the sum of its proper divisors (362113886).

421062550 is a wasteful number, since it uses less digits than its factorization.

421062550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8421263 (or 8421258 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 421062550 is about 20519.8087223054. The cubic root of 421062550 is about 749.5182387559.

The spelling of 421062550 in words is "four hundred twenty-one million, sixty-two thousand, five hundred fifty".