2512780000 has 60 divisors (see below), whose sum is σ = 6181864920. Its totient is φ = 1005104000.

The previous prime is 2512779967. The next prime is 2512780003. The reversal of 2512780000 is 872152.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2512780003) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 42820 + ... + 82819.

It is an arithmetic number, because the mean of its divisors is an integer number (103031082).

Almost surely, 2^2512780000 is an apocalyptic number.

2512780000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2512780000 is an abundant number, since it is smaller than the sum of its proper divisors (3669084920).

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

2512780000 is an equidigital number, since it uses as much as digits as its factorization.

2512780000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125669 (or 125646 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2512780000 is about 50127.6370877383. The cubic root of 2512780000 is about 1359.5175624475.

The spelling of 2512780000 in words is "two billion, five hundred twelve million, seven hundred eighty thousand".