20252753051 has 4 divisors (see below), whose sum is σ = 20723747352. Its totient is φ = 19781758752.

The previous prime is 20252753023. The next prime is 20252753057. The reversal of 20252753051 is 15035725202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20252753051 is a prime.

It is a super-2 number, since 2×20252753051² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20252752999 and 20252753017.

It is not an unprimeable number, because it can be changed into a prime (20252753057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235497086 + ... + 235497171.

It is an arithmetic number, because the mean of its divisors is an integer number (5180936838).

Almost surely, 2^20252753051 is an apocalyptic number.

20252753051 is a deficient number, since it is larger than the sum of its proper divisors (470994301).

20252753051 is an equidigital number, since it uses as much as digits as its factorization.

20252753051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470994300.

The product of its (nonzero) digits is 21000, while the sum is 32.

The spelling of 20252753051 in words is "twenty billion, two hundred fifty-two million, seven hundred fifty-three thousand, fifty-one".