2521630133 has 8 divisors (see below), whose sum is σ = 2756388000. Its totient is φ = 2287792080.

The previous prime is 2521630103. The next prime is 2521630169. The reversal of 2521630133 is 3310361252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2521630133 - 2²⁸ = 2253194677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521630103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224210 + ... + 235187.

It is an arithmetic number, because the mean of its divisors is an integer number (344548500).

Almost surely, 2^2521630133 is an apocalyptic number.

It is an amenable number.

2521630133 is a deficient number, since it is larger than the sum of its proper divisors (234757867).

2521630133 is a wasteful number, since it uses less digits than its factorization.

2521630133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459907.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 2521630133 is about 50215.8354804538. The cubic root of 2521630133 is about 1361.1117878552. Note that the first 3 decimals are identical.

Adding to 2521630133 its reverse (3310361252), we get a palindrome (5831991385).

The spelling of 2521630133 in words is "two billion, five hundred twenty-one million, six hundred thirty thousand, one hundred thirty-three".