69680551 has 2 divisors, whose sum is σ = 69680552. Its totient is φ = 69680550.

The previous prime is 69680537. The next prime is 69680557. The reversal of 69680551 is 15508696.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69680551 - 2⁵ = 69680519 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69680557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34840275 + 34840276.

It is an arithmetic number, because the mean of its divisors is an integer number (34840276).

Almost surely, 2^69680551 is an apocalyptic number.

69680551 is a deficient number, since it is larger than the sum of its proper divisors (1).

69680551 is an equidigital number, since it uses as much as digits as its factorization.

69680551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 40.

The square root of 69680551 is about 8347.4877058909. The cubic root of 69680551 is about 411.5006498555.

The spelling of 69680551 in words is "sixty-nine million, six hundred eighty thousand, five hundred fifty-one".