20010495 has 16 divisors (see below), whose sum is σ = 32077152. Its totient is φ = 10652160.

The previous prime is 20010491. The next prime is 20010517. The reversal of 20010495 is 59401002.

It is not a de Polignac number, because 20010495 - 2² = 20010491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10539 + ... + 12291.

It is an arithmetic number, because the mean of its divisors is an integer number (2004822).

Almost surely, 2^20010495 is an apocalyptic number.

20010495 is a deficient number, since it is larger than the sum of its proper divisors (12066657).

20010495 is a wasteful number, since it uses less digits than its factorization.

20010495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 20010495 is about 4473.3091777788. The cubic root of 20010495 is about 271.4892330451.

Adding to 20010495 its reverse (59401002), we get a palindrome (79411497).

The spelling of 20010495 in words is "twenty million, ten thousand, four hundred ninety-five".