53355542501 has 2 divisors, whose sum is σ = 53355542502. Its totient is φ = 53355542500.

The previous prime is 53355542489. The next prime is 53355542503. The reversal of 53355542501 is 10524555335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27899020900 + 25456521601 = 167030^2 + 159551^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53355542501 is a prime.

It is a Sophie Germain prime.

Together with 53355542503, it forms a pair of twin primes.

It is a Chen 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 (53355542503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26677771250 + 26677771251.

It is an arithmetic number, because the mean of its divisors is an integer number (26677771251).

Almost surely, 2^53355542501 is an apocalyptic number.

It is an amenable number.

53355542501 is a deficient number, since it is larger than the sum of its proper divisors (1).

53355542501 is an equidigital number, since it uses as much as digits as its factorization.

53355542501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225000, while the sum is 38.

The spelling of 53355542501 in words is "fifty-three billion, three hundred fifty-five million, five hundred forty-two thousand, five hundred one".