67552997 has 2 divisors, whose sum is σ = 67552998. Its totient is φ = 67552996.

The previous prime is 67552993. The next prime is 67553011. The reversal of 67552997 is 79925576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44809636 + 22743361 = 6694^2 + 4769^2 .

It is a cyclic number.

It is not a de Polignac number, because 67552997 - 2² = 67552993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67552993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33776498 + 33776499.

It is an arithmetic number, because the mean of its divisors is an integer number (33776499).

Almost surely, 2^67552997 is an apocalyptic number.

It is an amenable number.

67552997 is a deficient number, since it is larger than the sum of its proper divisors (1).

67552997 is an equidigital number, since it uses as much as digits as its factorization.

67552997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1190700, while the sum is 50.

The square root of 67552997 is about 8219.0630244572. The cubic root of 67552997 is about 407.2691746061.

The spelling of 67552997 in words is "sixty-seven million, five hundred fifty-two thousand, nine hundred ninety-seven".