253203163387 has 2 divisors, whose sum is σ = 253203163388. Its totient is φ = 253203163386.

The previous prime is 253203163319. The next prime is 253203163399. The reversal of 253203163387 is 783361302352.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 253203163387 - 2²⁷ = 253068945659 is a prime.

It is a super-2 number, since 2×253203163387² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (253203163687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126601581693 + 126601581694.

It is an arithmetic number, because the mean of its divisors is an integer number (126601581694).

Almost surely, 2^253203163387 is an apocalyptic number.

253203163387 is a deficient number, since it is larger than the sum of its proper divisors (1).

253203163387 is an equidigital number, since it uses as much as digits as its factorization.

253203163387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 253203163387 in words is "two hundred fifty-three billion, two hundred three million, one hundred sixty-three thousand, three hundred eighty-seven".