20074501 has 4 divisors (see below), whose sum is σ = 21255372. Its totient is φ = 18893632.

The previous prime is 20074477. The next prime is 20074511. The reversal of 20074501 is 10547002.

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 17430625 + 2643876 = 4175^2 + 1626^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20074501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20074511) 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, 590410 + ... + 590443.

It is an arithmetic number, because the mean of its divisors is an integer number (5313843).

Almost surely, 2^20074501 is an apocalyptic number.

It is an amenable number.

20074501 is a deficient number, since it is larger than the sum of its proper divisors (1180871).

20074501 is a wasteful number, since it uses less digits than its factorization.

20074501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1180870.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 20074501 is about 4480.4576775147. The cubic root of 20074501 is about 271.7783887320.

The spelling of 20074501 in words is "twenty million, seventy-four thousand, five hundred one".