25734159220 has 96 divisors (see below), whose sum is σ = 69020211456. Its totient is φ = 7825382400.

The previous prime is 25734159181. The next prime is 25734159223. The reversal of 25734159220 is 2295143752.

It is a super-2 number, since 2×25734159220² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25734159223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140647 + ... + 266926.

It is an arithmetic number, because the mean of its divisors is an integer number (718960536).

Almost surely, 2^25734159220 is an apocalyptic number.

25734159220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25734159220 is an abundant number, since it is smaller than the sum of its proper divisors (43286052236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25734159220 is a wasteful number, since it uses less digits than its factorization.

25734159220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407641 (or 407639 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 40.

The spelling of 25734159220 in words is "twenty-five billion, seven hundred thirty-four million, one hundred fifty-nine thousand, two hundred twenty".