53777629901 has 2 divisors, whose sum is σ = 53777629902. Its totient is φ = 53777629900.

The previous prime is 53777629889. The next prime is 53777629981. The reversal of 53777629901 is 10992677735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44721252676 + 9056377225 = 211474^2 + 95165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53777629901 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53777629981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26888814950 + 26888814951.

It is an arithmetic number, because the mean of its divisors is an integer number (26888814951).

Almost surely, 2^53777629901 is an apocalyptic number.

It is an amenable number.

53777629901 is a deficient number, since it is larger than the sum of its proper divisors (1).

53777629901 is an equidigital number, since it uses as much as digits as its factorization.

53777629901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5000940, while the sum is 56.

The spelling of 53777629901 in words is "fifty-three billion, seven hundred seventy-seven million, six hundred twenty-nine thousand, nine hundred one".