1633240253 has 2 divisors, whose sum is σ = 1633240254. Its totient is φ = 1633240252.

The previous prime is 1633240249. The next prime is 1633240267. The reversal of 1633240253 is 3520423361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 986148409 + 647091844 = 31403^2 + 25438^2 .

It is a cyclic number.

It is not a de Polignac number, because 1633240253 - 2² = 1633240249 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1633240223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 816620126 + 816620127.

It is an arithmetic number, because the mean of its divisors is an integer number (816620127).

Almost surely, 2^1633240253 is an apocalyptic number.

It is an amenable number.

1633240253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1633240253 is an equidigital number, since it uses as much as digits as its factorization.

1633240253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 1633240253 is about 40413.3672563918. The cubic root of 1633240253 is about 1177.6512345212.

The spelling of 1633240253 in words is "one billion, six hundred thirty-three million, two hundred forty thousand, two hundred fifty-three".