475251481 has 4 divisors (see below), whose sum is σ = 475362432. Its totient is φ = 475140532.

The previous prime is 475251467. The next prime is 475251527. The reversal of 475251481 is 184152574.

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.

It is a cyclic number.

It is not a de Polignac number, because 475251481 - 2⁹ = 475250969 is a prime.

It is a super-2 number, since 2×475251481² = 451727940385386722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 475251481.

It is not an unprimeable number, because it can be changed into a prime (475251401) 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, 48781 + ... + 57706.

It is an arithmetic number, because the mean of its divisors is an integer number (118840608).

Almost surely, 2^475251481 is an apocalyptic number.

It is an amenable number.

475251481 is a deficient number, since it is larger than the sum of its proper divisors (110951).

475251481 is a wasteful number, since it uses less digits than its factorization.

475251481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110950.

The product of its digits is 44800, while the sum is 37.

The square root of 475251481 is about 21800.2633240977. The cubic root of 475251481 is about 780.3830471220.

The spelling of 475251481 in words is "four hundred seventy-five million, two hundred fifty-one thousand, four hundred eighty-one".