20252541040 has 80 divisors (see below), whose sum is σ = 47386833120. Its totient is φ = 8049623040.

The previous prime is 20252541017. The next prime is 20252541091. The reversal of 20252541040 is 4014525202.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 20252540996 and 20252541014.

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, 11933472 + ... + 11935168.

It is an arithmetic number, because the mean of its divisors is an integer number (592335414).

Almost surely, 2^20252541040 is an apocalyptic number.

20252541040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20252541040 is an abundant number, since it is smaller than the sum of its proper divisors (27134292080).

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

20252541040 is a wasteful number, since it uses less digits than its factorization.

20252541040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2570 (or 2564 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The spelling of 20252541040 in words is "twenty billion, two hundred fifty-two million, five hundred forty-one thousand, forty".