2653521450520 has 64 divisors (see below), whose sum is σ = 6147797253120. Its totient is φ = 1030025240064.

The previous prime is 2653521450469. The next prime is 2653521450607. The reversal of 2653521450520 is 250541253562.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

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, 1773787 + ... + 2907466.

It is an arithmetic number, because the mean of its divisors is an integer number (96059332080).

Almost surely, 2^{2653521450520} is an apocalyptic number.

2653521450520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2653521450520 is an abundant number, since it is smaller than the sum of its proper divisors (3494275802600).

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

2653521450520 is a wasteful number, since it uses less digits than its factorization.

2653521450520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4681684 (or 4681680 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 40.

The spelling of 2653521450520 in words is "two trillion, six hundred fifty-three billion, five hundred twenty-one million, four hundred fifty thousand, five hundred twenty".