253554455387 has 2 divisors, whose sum is σ = 253554455388. Its totient is φ = 253554455386.

The previous prime is 253554455321. The next prime is 253554455389. The reversal of 253554455387 is 783554455352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253554455387 - 2³² = 249259488091 is a prime.

Together with 253554455389, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (253554455389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126777227693 + 126777227694.

It is an arithmetic number, because the mean of its divisors is an integer number (126777227694).

Almost surely, 2^253554455387 is an apocalyptic number.

253554455387 is a deficient number, since it is larger than the sum of its proper divisors (1).

253554455387 is an equidigital number, since it uses as much as digits as its factorization.

253554455387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400000, while the sum is 56.

The spelling of 253554455387 in words is "two hundred fifty-three billion, five hundred fifty-four million, four hundred fifty-five thousand, three hundred eighty-seven".