40252520000 has 420 divisors, whose sum is σ = 126732420144. Its totient is φ = 12539520000.

The previous prime is 40252519991. The next prime is 40252520003. The reversal of 40252520000 is 2525204.

40252520000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (40252520003) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 21559067 + ... + 21560933.

Almost surely, 2^40252520000 is an apocalyptic number.

40252520000 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 40252520000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63366210072).

40252520000 is an abundant number, since it is smaller than the sum of its proper divisors (86479900144).

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

40252520000 is a wasteful number, since it uses less digits than its factorization.

40252520000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924 (or 1892 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The spelling of 40252520000 in words is "forty billion, two hundred fifty-two million, five hundred twenty thousand".