5404042251 has 24 divisors (see below), whose sum is σ = 8105033664. Its totient is φ = 3598204680.

The previous prime is 5404042223. The next prime is 5404042253. The reversal of 5404042251 is 1522404045.

5404042251 is a `hidden beast` number, since 5 + 4 + 0 + 404 + 2 + 251 = 666.

It is not a de Polignac number, because 5404042251 - 2⁷ = 5404042123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (5404042253) 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, 187516 + ... + 214406.

It is an arithmetic number, because the mean of its divisors is an integer number (337709736).

Almost surely, 2^5404042251 is an apocalyptic number.

5404042251 is a deficient number, since it is larger than the sum of its proper divisors (2700991413).

5404042251 is an equidigital number, since it uses as much as digits as its factorization.

5404042251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27733 (or 27721 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 5404042251 is about 73512.1911726212. The cubic root of 5404042251 is about 1754.8482972093.

Adding to 5404042251 its reverse (1522404045), we get a palindrome (6926446296).

The spelling of 5404042251 in words is "five billion, four hundred four million, forty-two thousand, two hundred fifty-one".