8253557401 has 2 divisors, whose sum is σ = 8253557402. Its totient is φ = 8253557400.

The previous prime is 8253557399. The next prime is 8253557413. The reversal of 8253557401 is 1047553528.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7757381776 + 496175625 = 88076^2 + 22275^2 .

It is a cyclic number.

It is not a de Polignac number, because 8253557401 - 2¹ = 8253557399 is a prime.

Together with 8253557399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8253557461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4126778700 + 4126778701.

It is an arithmetic number, because the mean of its divisors is an integer number (4126778701).

Almost surely, 2^8253557401 is an apocalyptic number.

It is an amenable number.

8253557401 is a deficient number, since it is larger than the sum of its proper divisors (1).

8253557401 is an equidigital number, since it uses as much as digits as its factorization.

8253557401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 8253557401 is about 90849.0913603433. The cubic root of 8253557401 is about 2020.9103991077.

The spelling of 8253557401 in words is "eight billion, two hundred fifty-three million, five hundred fifty-seven thousand, four hundred one".