20252555040 has 96 divisors (see below), whose sum is σ = 64999319616. Its totient is φ = 5298775040.

The previous prime is 20252555027. The next prime is 20252555143. The reversal of 20252555040 is 4055525202.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 20252554989 and 20252555007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372606 + ... + 423485.

It is an arithmetic number, because the mean of its divisors is an integer number (677076246).

Almost surely, 2^20252555040 is an apocalyptic number.

20252555040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20252555040 is an abundant number, since it is smaller than the sum of its proper divisors (44746764576).

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

20252555040 is a wasteful number, since it uses less digits than its factorization.

20252555040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796162 (or 796154 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 30.

The spelling of 20252555040 in words is "twenty billion, two hundred fifty-two million, five hundred fifty-five thousand, forty".