2521576020 has 48 divisors (see below), whose sum is σ = 7367391360. Its totient is φ = 643184256.

The previous prime is 2521576007. The next prime is 2521576027. The reversal of 2521576020 is 206751252.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521576027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 912235 + ... + 914994.

It is an arithmetic number, because the mean of its divisors is an integer number (153487320).

Almost surely, 2^2521576020 is an apocalyptic number.

2521576020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2521576020 is an abundant number, since it is smaller than the sum of its proper divisors (4845815340).

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

2521576020 is a wasteful number, since it uses less digits than its factorization.

2521576020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827264 (or 1827262 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 2521576020 is about 50215.2966734241. The cubic root of 2521576020 is about 1361.1020515120.

The spelling of 2521576020 in words is "two billion, five hundred twenty-one million, five hundred seventy-six thousand, twenty".