20125529340 has 48 divisors (see below), whose sum is σ = 64401695232. Its totient is φ = 4600120896.

The previous prime is 20125529323. The next prime is 20125529387. The reversal of 20125529340 is 4392552102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23958544 + ... + 23959383.

It is an arithmetic number, because the mean of its divisors is an integer number (1341701984).

Almost surely, 2^20125529340 is an apocalyptic number.

20125529340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20125529340 is an abundant number, since it is smaller than the sum of its proper divisors (44276165892).

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

20125529340 is a wasteful number, since it uses less digits than its factorization.

20125529340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47917946 (or 47917944 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 20125529340 in words is "twenty billion, one hundred twenty-five million, five hundred twenty-nine thousand, three hundred forty".