43725253920 has 192 divisors, whose sum is σ = 146819433600. Its totient is φ = 10900226048.

The previous prime is 43725253919. The next prime is 43725253967. The reversal of 43725253920 is 2935252734.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1197859 + ... + 1233821.

It is an arithmetic number, because the mean of its divisors is an integer number (764684550).

Almost surely, 2^43725253920 is an apocalyptic number.

43725253920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43725253920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73409716800).

43725253920 is an abundant number, since it is smaller than the sum of its proper divisors (103094179680).

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

43725253920 is a wasteful number, since it uses less digits than its factorization.

43725253920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36147 (or 36139 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 42.

The spelling of 43725253920 in words is "forty-three billion, seven hundred twenty-five million, two hundred fifty-three thousand, nine hundred twenty".