88640051 has 2 divisors, whose sum is σ = 88640052. Its totient is φ = 88640050.

The previous prime is 88640039. The next prime is 88640087. The reversal of 88640051 is 15004688.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 88640051 - 2⁶ = 88639987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (88640011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44320025 + 44320026.

It is an arithmetic number, because the mean of its divisors is an integer number (44320026).

Almost surely, 2^88640051 is an apocalyptic number.

88640051 is a deficient number, since it is larger than the sum of its proper divisors (1).

88640051 is an equidigital number, since it uses as much as digits as its factorization.

88640051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 88640051 is about 9414.8845452294. The cubic root of 88640051 is about 445.8717934698.

The spelling of 88640051 in words is "eighty-eight million, six hundred forty thousand, fifty-one".