40253131355520 has 128 divisors (see below), whose sum is σ = 128650844694240. Its totient is φ = 10705390239744.

The previous prime is 40253131355473. The next prime is 40253131355543. The reversal of 40253131355520 is 2555313135204.

It is a tau number, because it is divible by the number of its divisors (128).

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, 27387289 + ... + 28819608.

Almost surely, 2^{40253131355520} is an apocalyptic number.

40253131355520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40253131355520 is an abundant number, since it is smaller than the sum of its proper divisors (88397713338720).

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

40253131355520 is a wasteful number, since it uses less digits than its factorization.

40253131355520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56207292 (or 56207280 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 40253131355520 in words is "forty trillion, two hundred fifty-three billion, one hundred thirty-one million, three hundred fifty-five thousand, five hundred twenty".