5421256090 has 16 divisors (see below), whose sum is σ = 9903907872. Its totient is φ = 2136136464.

The previous prime is 5421256069. The next prime is 5421256097. The reversal of 5421256090 is 906521245.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5421256097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4045044 + ... + 4046383.

It is an arithmetic number, because the mean of its divisors is an integer number (618994242).

Almost surely, 2^5421256090 is an apocalyptic number.

5421256090 is a deficient number, since it is larger than the sum of its proper divisors (4482651782).

5421256090 is a wasteful number, since it uses less digits than its factorization.

5421256090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8091501.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 5421256090 is about 73629.1796097172. The cubic root of 5421256090 is about 1756.7095988765.

The spelling of 5421256090 in words is "five billion, four hundred twenty-one million, two hundred fifty-six thousand, ninety".