2575021000 has 32 divisors (see below), whose sum is σ = 6025551480. Its totient is φ = 1030008000.

The previous prime is 2575020989. The next prime is 2575021013. The reversal of 2575021000 is 1205752.

It can be written as a sum of positive squares in 4 ways, for example, as 99560484 + 2475460516 = 9978^2 + 49754^2 .

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, 1286511 + ... + 1288510.

Almost surely, 2^2575021000 is an apocalyptic number.

2575021000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2575021000 is an abundant number, since it is smaller than the sum of its proper divisors (3450530480).

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

2575021000 is a wasteful number, since it uses less digits than its factorization.

2575021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575042 (or 2575028 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 2575021000 is about 50744.6647441876. The cubic root of 2575021000 is about 1370.6511192682.

Adding to 2575021000 its reverse (1205752), we get a palindrome (2576226752).

The spelling of 2575021000 in words is "two billion, five hundred seventy-five million, twenty-one thousand".