88510421 has 2 divisors, whose sum is σ = 88510422. Its totient is φ = 88510420.

The previous prime is 88510403. The next prime is 88510423. The reversal of 88510421 is 12401588.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70140625 + 18369796 = 8375^2 + 4286^2 .

It is a cyclic number.

It is not a de Polignac number, because 88510421 - 2²⁶ = 21401557 is a prime.

Together with 88510423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88510423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44255210 + 44255211.

It is an arithmetic number, because the mean of its divisors is an integer number (44255211).

Almost surely, 2^88510421 is an apocalyptic number.

It is an amenable number.

88510421 is a deficient number, since it is larger than the sum of its proper divisors (1).

88510421 is an equidigital number, since it uses as much as digits as its factorization.

88510421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 88510421 is about 9407.9977147106. The cubic root of 88510421 is about 445.6543351154.

The spelling of 88510421 in words is "eighty-eight million, five hundred ten thousand, four hundred twenty-one".