4891231253 has 2 divisors, whose sum is σ = 4891231254. Its totient is φ = 4891231252.

The previous prime is 4891231159. The next prime is 4891231271. The reversal of 4891231253 is 3521321984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4397413969 + 493817284 = 66313^2 + 22222^2 .

It is a cyclic number.

It is not a de Polignac number, because 4891231253 - 2¹² = 4891227157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4891231273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2445615626 + 2445615627.

It is an arithmetic number, because the mean of its divisors is an integer number (2445615627).

Almost surely, 2^4891231253 is an apocalyptic number.

It is an amenable number.

4891231253 is a deficient number, since it is larger than the sum of its proper divisors (1).

4891231253 is an equidigital number, since it uses as much as digits as its factorization.

4891231253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 38.

The square root of 4891231253 is about 69937.3380462825. The cubic root of 4891231253 is about 1697.4854697001.

The spelling of 4891231253 in words is "four billion, eight hundred ninety-one million, two hundred thirty-one thousand, two hundred fifty-three".