253632133 has 4 divisors (see below), whose sum is σ = 255311968. Its totient is φ = 251952300.

The previous prime is 253632101. The next prime is 253632139. The reversal of 253632133 is 331236352.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 253632133 - 2⁵ = 253632101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253632139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 839691 + ... + 839992.

It is an arithmetic number, because the mean of its divisors is an integer number (63827992).

Almost surely, 2^253632133 is an apocalyptic number.

It is an amenable number.

253632133 is a deficient number, since it is larger than the sum of its proper divisors (1679835).

253632133 is a wasteful number, since it uses less digits than its factorization.

253632133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679834.

The product of its digits is 9720, while the sum is 28.

The square root of 253632133 is about 15925.8322545480. The cubic root of 253632133 is about 632.9966690533.

Adding to 253632133 its reverse (331236352), we get a palindrome (584868485).

The spelling of 253632133 in words is "two hundred fifty-three million, six hundred thirty-two thousand, one hundred thirty-three".