67272551 has 2 divisors, whose sum is σ = 67272552. Its totient is φ = 67272550.

The previous prime is 67272533. The next prime is 67272563. The reversal of 67272551 is 15527276.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67272551 is a prime.

It is a super-2 number, since 2×67272551² = 9051192236095202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67272581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33636275 + 33636276.

It is an arithmetic number, because the mean of its divisors is an integer number (33636276).

Almost surely, 2^67272551 is an apocalyptic number.

67272551 is a deficient number, since it is larger than the sum of its proper divisors (1).

67272551 is an equidigital number, since it uses as much as digits as its factorization.

67272551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 35.

The square root of 67272551 is about 8201.9845769180. The cubic root of 67272551 is about 406.7048007627.

The spelling of 67272551 in words is "sixty-seven million, two hundred seventy-two thousand, five hundred fifty-one".