2505453553 has 2 divisors, whose sum is σ = 2505453554. Its totient is φ = 2505453552.

The previous prime is 2505453547. The next prime is 2505453589. The reversal of 2505453553 is 3553545052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2504802304 + 651249 = 50048^2 + 807^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2505453553 is a prime.

It is not a weakly prime, because it can be changed into another prime (2505493553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1252726776 + 1252726777.

It is an arithmetic number, because the mean of its divisors is an integer number (1252726777).

Almost surely, 2^2505453553 is an apocalyptic number.

It is an amenable number.

2505453553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2505453553 is an equidigital number, since it uses as much as digits as its factorization.

2505453553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225000, while the sum is 37.

The square root of 2505453553 is about 50054.5058211546. The cubic root of 2505453553 is about 1358.1949729203.

The spelling of 2505453553 in words is "two billion, five hundred five million, four hundred fifty-three thousand, five hundred fifty-three".