538288457 has 4 divisors (see below), whose sum is σ = 615186816. Its totient is φ = 461390100.

The previous prime is 538288453. The next prime is 538288477. The reversal of 538288457 is 754882835.

It is a happy number.

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 538288457 - 2² = 538288453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538288453) 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, 38449169 + ... + 38449182.

It is an arithmetic number, because the mean of its divisors is an integer number (153796704).

Almost surely, 2^538288457 is an apocalyptic number.

It is an amenable number.

538288457 is a deficient number, since it is larger than the sum of its proper divisors (76898359).

538288457 is an equidigital number, since it uses as much as digits as its factorization.

538288457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76898358.

The product of its digits is 2150400, while the sum is 50.

The square root of 538288457 is about 23201.0443083927. The cubic root of 538288457 is about 813.4640332189.

It can be divided in two parts, 5382 and 88457, that added together give a palindrome (93839).

The spelling of 538288457 in words is "five hundred thirty-eight million, two hundred eighty-eight thousand, four hundred fifty-seven".