86226551 has 2 divisors, whose sum is σ = 86226552. Its totient is φ = 86226550.

The previous prime is 86226479. The next prime is 86226559. The reversal of 86226551 is 15562268.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86226551 - 2¹⁰ = 86225527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86226559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43113275 + 43113276.

It is an arithmetic number, because the mean of its divisors is an integer number (43113276).

Almost surely, 2^86226551 is an apocalyptic number.

86226551 is a deficient number, since it is larger than the sum of its proper divisors (1).

86226551 is an equidigital number, since it uses as much as digits as its factorization.

86226551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28800, while the sum is 35.

The square root of 86226551 is about 9285.8252729631. The cubic root of 86226551 is about 441.7877522205.

The spelling of 86226551 in words is "eighty-six million, two hundred twenty-six thousand, five hundred fifty-one".