53750914781 has 2 divisors, whose sum is σ = 53750914782. Its totient is φ = 53750914780.

The previous prime is 53750914741. The next prime is 53750914783. The reversal of 53750914781 is 18741905735.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50926948900 + 2823965881 = 225670^2 + 53141^2 .

It is a cyclic number.

It is not a de Polignac number, because 53750914781 - 2²² = 53746720477 is a prime.

It is a super-2 number, since 2×53750914781² (a number of 22 digits) contains 22 as substring.

Together with 53750914783, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53750914783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26875457390 + 26875457391.

It is an arithmetic number, because the mean of its divisors is an integer number (26875457391).

Almost surely, 2^53750914781 is an apocalyptic number.

It is an amenable number.

53750914781 is a deficient number, since it is larger than the sum of its proper divisors (1).

53750914781 is an equidigital number, since it uses as much as digits as its factorization.

53750914781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 50.

The spelling of 53750914781 in words is "fifty-three billion, seven hundred fifty million, nine hundred fourteen thousand, seven hundred eighty-one".