2420521553 has 2 divisors, whose sum is σ = 2420521554. Its totient is φ = 2420521552.

The previous prime is 2420521531. The next prime is 2420521559. The reversal of 2420521553 is 3551250242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2331634369 + 88887184 = 48287^2 + 9428^2 .

It is a cyclic number.

It is not a de Polignac number, because 2420521553 - 2²⁴ = 2403744337 is a prime.

It is not a weakly prime, because it can be changed into another prime (2420521559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1210260776 + 1210260777.

It is an arithmetic number, because the mean of its divisors is an integer number (1210260777).

Almost surely, 2^2420521553 is an apocalyptic number.

It is an amenable number.

2420521553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2420521553 is an equidigital number, since it uses as much as digits as its factorization.

2420521553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2420521553 is about 49198.7962555996. The cubic root of 2420521553 is about 1342.6711315563.

Adding to 2420521553 its reverse (3551250242), we get a palindrome (5971771795).

The spelling of 2420521553 in words is "two billion, four hundred twenty million, five hundred twenty-one thousand, five hundred fifty-three".