2420021753 has 2 divisors, whose sum is σ = 2420021754. Its totient is φ = 2420021752.

The previous prime is 2420021743. The next prime is 2420021777. The reversal of 2420021753 is 3571200242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2029682704 + 390339049 = 45052^2 + 19757^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420021753 - 2²⁴ = 2403244537 is a prime.

It is not a weakly prime, because it can be changed into another prime (2420021743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210010876 + 1210010877.

It is an arithmetic number, because the mean of its divisors is an integer number (1210010877).

Almost surely, 2^2420021753 is an apocalyptic number.

It is an amenable number.

2420021753 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420021753 is an equidigital number, since it uses as much as digits as its factorization.

2420021753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 2420021753 is about 49193.7166008018. The cubic root of 2420021753 is about 1342.5787116363.

Adding to 2420021753 its reverse (3571200242), we get a palindrome (5991221995).

The spelling of 2420021753 in words is "two billion, four hundred twenty million, twenty-one thousand, seven hundred fifty-three".