20075461 has 4 divisors (see below), whose sum is σ = 22943392. Its totient is φ = 17207532.

The previous prime is 20075449. The next prime is 20075477. The reversal of 20075461 is 16457002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20075461 - 2⁷ = 20075333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20075441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433955 + ... + 1433968.

It is an arithmetic number, because the mean of its divisors is an integer number (5735848).

Almost surely, 2^20075461 is an apocalyptic number.

It is an amenable number.

20075461 is a deficient number, since it is larger than the sum of its proper divisors (2867931).

20075461 is an equidigital number, since it uses as much as digits as its factorization.

20075461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867930.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20075461 is about 4480.5648081464. The cubic root of 20075461 is about 271.7827209791.

The spelling of 20075461 in words is "twenty million, seventy-five thousand, four hundred sixty-one".