20735050425 has 48 divisors (see below), whose sum is σ = 35176796160. Its totient is φ = 10771467840.

The previous prime is 20735050423. The next prime is 20735050543. The reversal of 20735050425 is 52405053702.

It is not a de Polignac number, because 20735050425 - 2¹ = 20735050423 is a prime.

It is a super-2 number, since 2×20735050425² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20735050423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1174816 + ... + 1192334.

It is an arithmetic number, because the mean of its divisors is an integer number (732849920).

Almost surely, 2^20735050425 is an apocalyptic number.

20735050425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20735050425 is a deficient number, since it is larger than the sum of its proper divisors (14441745735).

20735050425 is a wasteful number, since it uses less digits than its factorization.

20735050425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17942 (or 17937 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 33.

The spelling of 20735050425 in words is "twenty billion, seven hundred thirty-five million, fifty thousand, four hundred twenty-five".