2780000253 has 12 divisors (see below), whose sum is σ = 4023270108. Its totient is φ = 1849773120.

The previous prime is 2780000221. The next prime is 2780000273. The reversal of 2780000253 is 3520000872.

It can be written as a sum of positive squares in 2 ways, for example, as 621654489 + 2158345764 = 24933^2 + 46458^2 .

It is not a de Polignac number, because 2780000253 - 2⁵ = 2780000221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780000213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 291750 + ... + 301127.

It is an arithmetic number, because the mean of its divisors is an integer number (335272509).

Almost surely, 2^2780000253 is an apocalyptic number.

It is an amenable number.

2780000253 is a deficient number, since it is larger than the sum of its proper divisors (1243269855).

2780000253 is a wasteful number, since it uses less digits than its factorization.

2780000253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593404 (or 593401 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2780000253 is about 52725.7077050655. The cubic root of 2780000253 is about 1406.0959105356.

The spelling of 2780000253 in words is "two billion, seven hundred eighty million, two hundred fifty-three", and thus it is an aban number.