20525293469 has 8 divisors (see below), whose sum is σ = 20637869952. Its totient is φ = 20412997920.

The previous prime is 20525293441. The next prime is 20525293487. The reversal of 20525293469 is 96439252502.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20525293469 is a prime.

It is a super-2 number, since 2×20525293469² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525293669) 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, 77132 + ... + 216794.

It is an arithmetic number, because the mean of its divisors is an integer number (2579733744).

Almost surely, 2^20525293469 is an apocalyptic number.

It is an amenable number.

20525293469 is a deficient number, since it is larger than the sum of its proper divisors (112576483).

20525293469 is a wasteful number, since it uses less digits than its factorization.

20525293469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140467.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 20525293469 in words is "twenty billion, five hundred twenty-five million, two hundred ninety-three thousand, four hundred sixty-nine".