20625314253 has 16 divisors (see below), whose sum is σ = 28148341056. Its totient is φ = 13426439040.

The previous prime is 20625314251. The next prime is 20625314263. The reversal of 20625314253 is 35241352602.

It is a happy number.

It is not a de Polignac number, because 20625314253 - 2¹ = 20625314251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20625314251) 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 15 ways as a sum of consecutive naturals, for example, 447193 + ... + 491153.

It is an arithmetic number, because the mean of its divisors is an integer number (1759271316).

Almost surely, 2^20625314253 is an apocalyptic number.

It is an amenable number.

20625314253 is a deficient number, since it is larger than the sum of its proper divisors (7523026803).

20625314253 is a wasteful number, since it uses less digits than its factorization.

20625314253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47644.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 20625314253 its reverse (35241352602), we get a palindrome (55866666855).

The spelling of 20625314253 in words is "twenty billion, six hundred twenty-five million, three hundred fourteen thousand, two hundred fifty-three".