20250652405 has 4 divisors (see below), whose sum is σ = 24300782892. Its totient is φ = 16200521920.

The previous prime is 20250652351. The next prime is 20250652417. The reversal of 20250652405 is 50425605202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6915252964 + 13335399441 = 83158^2 + 115479^2 .

It is not a de Polignac number, because 20250652405 - 2¹³ = 20250644213 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2025065236 + ... + 2025065245.

It is an arithmetic number, because the mean of its divisors is an integer number (6075195723).

Almost surely, 2^20250652405 is an apocalyptic number.

It is an amenable number.

20250652405 is a deficient number, since it is larger than the sum of its proper divisors (4050130487).

20250652405 is an equidigital number, since it uses as much as digits as its factorization.

20250652405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050130486.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 20250652405 in words is "twenty billion, two hundred fifty million, six hundred fifty-two thousand, four hundred five".