67120551 has 6 divisors (see below), whose sum is σ = 96951920. Its totient is φ = 44747028.

The previous prime is 67120541. The next prime is 67120579. The reversal of 67120551 is 15502176.

It is not a de Polignac number, because 67120551 - 2¹⁷ = 66989479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67120541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3728911 + ... + 3728928.

Almost surely, 2^67120551 is an apocalyptic number.

67120551 is a deficient number, since it is larger than the sum of its proper divisors (29831369).

67120551 is a wasteful number, since it uses less digits than its factorization.

67120551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7457845 (or 7457842 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 67120551 is about 8192.7132868177. The cubic root of 67120551 is about 406.3982579667.

The spelling of 67120551 in words is "sixty-seven million, one hundred twenty thousand, five hundred fifty-one".