253033397 has 2 divisors, whose sum is σ = 253033398. Its totient is φ = 253033396.

The previous prime is 253033387. The next prime is 253033453. The reversal of 253033397 is 793330352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 225930961 + 27102436 = 15031^2 + 5206^2 .

It is a cyclic number.

It is not a de Polignac number, because 253033397 - 2¹⁶ = 252967861 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253033337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126516698 + 126516699.

It is an arithmetic number, because the mean of its divisors is an integer number (126516699).

Almost surely, 2^253033397 is an apocalyptic number.

It is an amenable number.

253033397 is a deficient number, since it is larger than the sum of its proper divisors (1).

253033397 is an equidigital number, since it uses as much as digits as its factorization.

253033397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51030, while the sum is 35.

The square root of 253033397 is about 15907.0235116442. The cubic root of 253033397 is about 632.4981826462.

The spelling of 253033397 in words is "two hundred fifty-three million, thirty-three thousand, three hundred ninety-seven".