91825051 has 2 divisors, whose sum is σ = 91825052. Its totient is φ = 91825050.

The previous prime is 91825003. The next prime is 91825057. The reversal of 91825051 is 15052819.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 91825051 - 2⁷ = 91824923 is a prime.

It is not a weakly prime, because it can be changed into another prime (91825057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45912525 + 45912526.

It is an arithmetic number, because the mean of its divisors is an integer number (45912526).

Almost surely, 2^91825051 is an apocalyptic number.

91825051 is a deficient number, since it is larger than the sum of its proper divisors (1).

91825051 is an equidigital number, since it uses as much as digits as its factorization.

91825051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 31.

The square root of 91825051 is about 9582.5388598221. The cubic root of 91825051 is about 451.1494089567.

The spelling of 91825051 in words is "ninety-one million, eight hundred twenty-five thousand, fifty-one".