68972053 has 2 divisors, whose sum is σ = 68972054. Its totient is φ = 68972052.

The previous prime is 68972051. The next prime is 68972069. The reversal of 68972053 is 35027986.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36276529 + 32695524 = 6023^2 + 5718^2 .

It is a cyclic number.

It is not a de Polignac number, because 68972053 - 2¹ = 68972051 is a prime.

Together with 68972051, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 68971997 and 68972015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68972051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34486026 + 34486027.

It is an arithmetic number, because the mean of its divisors is an integer number (34486027).

Almost surely, 2^68972053 is an apocalyptic number.

It is an amenable number.

68972053 is a deficient number, since it is larger than the sum of its proper divisors (1).

68972053 is an equidigital number, since it uses as much as digits as its factorization.

68972053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 68972053 is about 8304.9414808294. The cubic root of 68972053 is about 410.1012103895.

The spelling of 68972053 in words is "sixty-eight million, nine hundred seventy-two thousand, fifty-three".