475554421 has 4 divisors (see below), whose sum is σ = 479299072. Its totient is φ = 471809772.

The previous prime is 475554407. The next prime is 475554427. The reversal of 475554421 is 124455574.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 124455574 = 2 ⋅62227787.

It is a cyclic number.

It is not a de Polignac number, because 475554421 - 2⁹ = 475553909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (475554427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1872135 + ... + 1872388.

It is an arithmetic number, because the mean of its divisors is an integer number (119824768).

Almost surely, 2^475554421 is an apocalyptic number.

It is an amenable number.

475554421 is a deficient number, since it is larger than the sum of its proper divisors (3744651).

475554421 is a wasteful number, since it uses less digits than its factorization.

475554421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3744650.

The product of its digits is 112000, while the sum is 37.

The square root of 475554421 is about 21807.2102984311. The cubic root of 475554421 is about 780.5488253370.

The spelling of 475554421 in words is "four hundred seventy-five million, five hundred fifty-four thousand, four hundred twenty-one".