91425311 has 2 divisors, whose sum is σ = 91425312. Its totient is φ = 91425310.

The previous prime is 91425307. The next prime is 91425329. The reversal of 91425311 is 11352419.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91425311 - 2² = 91425307 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91425331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45712655 + 45712656.

It is an arithmetic number, because the mean of its divisors is an integer number (45712656).

Almost surely, 2^91425311 is an apocalyptic number.

91425311 is a deficient number, since it is larger than the sum of its proper divisors (1).

91425311 is an equidigital number, since it uses as much as digits as its factorization.

91425311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

The square root of 91425311 is about 9561.6583812642. The cubic root of 91425311 is about 450.4937970397.

The spelling of 91425311 in words is "ninety-one million, four hundred twenty-five thousand, three hundred eleven".