5408423257 has 4 divisors (see below), whose sum is σ = 5409168336. Its totient is φ = 5407678180.

The previous prime is 5408423249. The next prime is 5408423287. The reversal of 5408423257 is 7523248045.

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: 7523248045 = 5 ⋅1504649609.

It is a cyclic number.

It is not a de Polignac number, because 5408423257 - 2³ = 5408423249 is a prime.

It is a super-3 number, since 3×5408423257³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5408423287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361543 + ... + 376204.

It is an arithmetic number, because the mean of its divisors is an integer number (1352292084).

Almost surely, 2^5408423257 is an apocalyptic number.

It is an amenable number.

5408423257 is a deficient number, since it is larger than the sum of its proper divisors (745079).

5408423257 is an equidigital number, since it uses as much as digits as its factorization.

5408423257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745078.

The product of its (nonzero) digits is 268800, while the sum is 40.

The square root of 5408423257 is about 73541.9829553161. The cubic root of 5408423257 is about 1755.3223820991.

The spelling of 5408423257 in words is "five billion, four hundred eight million, four hundred twenty-three thousand, two hundred fifty-seven".