490826521 has 2 divisors, whose sum is σ = 490826522. Its totient is φ = 490826520.

The previous prime is 490826491. The next prime is 490826551. The reversal of 490826521 is 125628094.

It is a balanced prime because it is at equal distance from previous prime (490826491) and next prime (490826551).

It can be written as a sum of positive squares in only one way, i.e., 439489296 + 51337225 = 20964^2 + 7165^2 .

It is a cyclic number.

It is not a de Polignac number, because 490826521 - 2⁵ = 490826489 is a prime.

It is not a weakly prime, because it can be changed into another prime (490826551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245413260 + 245413261.

It is an arithmetic number, because the mean of its divisors is an integer number (245413261).

Almost surely, 2^490826521 is an apocalyptic number.

It is an amenable number.

490826521 is a deficient number, since it is larger than the sum of its proper divisors (1).

490826521 is an equidigital number, since it uses as much as digits as its factorization.

490826521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 490826521 is about 22154.6049614973. The cubic root of 490826521 is about 788.8165375608.

The spelling of 490826521 in words is "four hundred ninety million, eight hundred twenty-six thousand, five hundred twenty-one".