99627551 has 2 divisors, whose sum is σ = 99627552. Its totient is φ = 99627550.

The previous prime is 99627523. The next prime is 99627571. The reversal of 99627551 is 15572699.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99627551 - 2⁶ = 99627487 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 (99627571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49813775 + 49813776.

It is an arithmetic number, because the mean of its divisors is an integer number (49813776).

Almost surely, 2^99627551 is an apocalyptic number.

99627551 is a deficient number, since it is larger than the sum of its proper divisors (1).

99627551 is an equidigital number, since it uses as much as digits as its factorization.

99627551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 170100, while the sum is 44.

The square root of 99627551 is about 9981.3601778515. The cubic root of 99627551 is about 463.5819147562.

The spelling of 99627551 in words is "ninety-nine million, six hundred twenty-seven thousand, five hundred fifty-one".