2511505212420 has 48 divisors (see below), whose sum is σ = 7032283651008. Its totient is φ = 669728146560.

The previous prime is 2511505212389. The next prime is 2511505212449. The reversal of 2511505212420 is 242125051152.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11046690 + ... + 11271750.

It is an arithmetic number, because the mean of its divisors is an integer number (146505909396).

Almost surely, 2^{2511505212420} is an apocalyptic number.

2511505212420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2511505212420 is an abundant number, since it is smaller than the sum of its proper divisors (4520778438588).

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

2511505212420 is a wasteful number, since it uses less digits than its factorization.

2511505212420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411060 (or 411058 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 2511505212420 in words is "two trillion, five hundred eleven billion, five hundred five million, two hundred twelve thousand, four hundred twenty".