53950621 has 2 divisors, whose sum is σ = 53950622. Its totient is φ = 53950620.

The previous prime is 53950619. The next prime is 53950627. The reversal of 53950621 is 12605935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42968025 + 10982596 = 6555^2 + 3314^2 .

It is a cyclic number.

It is not a de Polignac number, because 53950621 - 2¹ = 53950619 is a prime.

Together with 53950619, 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 (53950627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26975310 + 26975311.

It is an arithmetic number, because the mean of its divisors is an integer number (26975311).

Almost surely, 2^53950621 is an apocalyptic number.

It is an amenable number.

53950621 is a deficient number, since it is larger than the sum of its proper divisors (1).

53950621 is an equidigital number, since it uses as much as digits as its factorization.

53950621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 53950621 is about 7345.1086445334. The cubic root of 53950621 is about 377.8610693862.

The spelling of 53950621 in words is "fifty-three million, nine hundred fifty thousand, six hundred twenty-one".