22751087 has 2 divisors, whose sum is σ = 22751088. Its totient is φ = 22751086.

The previous prime is 22751039. The next prime is 22751093. The reversal of 22751087 is 78015722.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22751087 is a prime.

It is a super-2 number, since 2×22751087² = 1035223919363138, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22751017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11375543 + 11375544.

It is an arithmetic number, because the mean of its divisors is an integer number (11375544).

Almost surely, 2^22751087 is an apocalyptic number.

22751087 is a deficient number, since it is larger than the sum of its proper divisors (1).

22751087 is an equidigital number, since it uses as much as digits as its factorization.

22751087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 32.

The square root of 22751087 is about 4769.8099542854. The cubic root of 22751087 is about 283.3570682154.

The spelling of 22751087 in words is "twenty-two million, seven hundred fifty-one thousand, eighty-seven".