20752799 has 2 divisors, whose sum is σ = 20752800. Its totient is φ = 20752798.

The previous prime is 20752763. The next prime is 20752811. The reversal of 20752799 is 99725702.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20752799 - 2¹⁶ = 20687263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20752729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10376399 + 10376400.

It is an arithmetic number, because the mean of its divisors is an integer number (10376400).

Almost surely, 2^20752799 is an apocalyptic number.

20752799 is a deficient number, since it is larger than the sum of its proper divisors (1).

20752799 is an equidigital number, since it uses as much as digits as its factorization.

20752799 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 20752799 is about 4555.5240093759. The cubic root of 20752799 is about 274.8055882124.

The spelling of 20752799 in words is "twenty million, seven hundred fifty-two thousand, seven hundred ninety-nine".