1894900253 has 4 divisors (see below), whose sum is σ = 1895597340. Its totient is φ = 1894203168.

The previous prime is 1894900247. The next prime is 1894900261. The reversal of 1894900253 is 3520094981.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1274989849 + 619910404 = 35707^2 + 24898^2 .

It is a cyclic number.

It is not a de Polignac number, because 1894900253 - 2⁸ = 1894899997 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1894900253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1894900213) 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, 344450 + ... + 349907.

It is an arithmetic number, because the mean of its divisors is an integer number (473899335).

Almost surely, 2^1894900253 is an apocalyptic number.

It is an amenable number.

1894900253 is a deficient number, since it is larger than the sum of its proper divisors (697087).

1894900253 is an equidigital number, since it uses as much as digits as its factorization.

1894900253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697086.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 1894900253 is about 43530.4520192474. The cubic root of 1894900253 is about 1237.4532043387.

The spelling of 1894900253 in words is "one billion, eight hundred ninety-four million, nine hundred thousand, two hundred fifty-three".