2521132455020 has 24 divisors (see below), whose sum is σ = 5297198894064. Its totient is φ = 1007915698496.

The previous prime is 2521132454999. The next prime is 2521132455031. The reversal of 2521132455020 is 205542311252.

It is a super-2 number, since 2×2521132455020² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33541742 + ... + 33616821.

It is an arithmetic number, because the mean of its divisors is an integer number (220716620586).

Almost surely, 2^{2521132455020} is an apocalyptic number.

2521132455020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2521132455020 is an abundant number, since it is smaller than the sum of its proper divisors (2776066439044).

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

2521132455020 is a wasteful number, since it uses less digits than its factorization.

2521132455020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67160449 (or 67160447 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 2521132455020 its reverse (205542311252), we get a palindrome (2726674766272).

The spelling of 2521132455020 in words is "two trillion, five hundred twenty-one billion, one hundred thirty-two million, four hundred fifty-five thousand, twenty".