2520257020 has 12 divisors (see below), whose sum is σ = 5292539784. Its totient is φ = 1008102800.

The previous prime is 2520257009. The next prime is 2520257027. The reversal of 2520257020 is 207520252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520257027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63006406 + ... + 63006445.

It is an arithmetic number, because the mean of its divisors is an integer number (441044982).

Almost surely, 2^2520257020 is an apocalyptic number.

2520257020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2520257020 is an abundant number, since it is smaller than the sum of its proper divisors (2772282764).

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

2520257020 is a wasteful number, since it uses less digits than its factorization.

2520257020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126012860 (or 126012858 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 2520257020 is about 50202.1615072499. The cubic root of 2520257020 is about 1360.8646858442.

Adding to 2520257020 its reverse (207520252), we get a palindrome (2727777272).

The spelling of 2520257020 in words is "two billion, five hundred twenty million, two hundred fifty-seven thousand, twenty".