420103550 has 48 divisors (see below), whose sum is σ = 821329872. Its totient is φ = 159667200.

The previous prime is 420103517. The next prime is 420103553. The reversal of 420103550 is 55301024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420103553) 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, 76910 + ... + 82190.

It is an arithmetic number, because the mean of its divisors is an integer number (17111039).

Almost surely, 2^420103550 is an apocalyptic number.

420103550 is a deficient number, since it is larger than the sum of its proper divisors (401226322).

420103550 is a wasteful number, since it uses less digits than its factorization.

420103550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5373 (or 5368 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 420103550 is about 20496.4277375351. The cubic root of 420103550 is about 748.9487791198.

Adding to 420103550 its reverse (55301024), we get a palindrome (475404574).

The spelling of 420103550 in words is "four hundred twenty million, one hundred three thousand, five hundred fifty".