20412501 has 8 divisors (see below), whose sum is σ = 27239520. Its totient is φ = 13596912.

The previous prime is 20412499. The next prime is 20412503. The reversal of 20412501 is 10521402.

It is an interprime number because it is at equal distance from previous prime (20412499) and next prime (20412503).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20412501 - 2¹ = 20412499 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20412503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3070 + ... + 7088.

It is an arithmetic number, because the mean of its divisors is an integer number (3404940).

Almost surely, 2^20412501 is an apocalyptic number.

It is an amenable number.

20412501 is a deficient number, since it is larger than the sum of its proper divisors (6827019).

20412501 is a wasteful number, since it uses less digits than its factorization.

20412501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5715.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 20412501 is about 4518.0195882709. The cubic root of 20412501 is about 273.2952433868.

Adding to 20412501 its reverse (10521402), we get a palindrome (30933903).

The spelling of 20412501 in words is "twenty million, four hundred twelve thousand, five hundred one".