20453037 has 16 divisors (see below), whose sum is σ = 30385152. Its totient is φ = 12131120.

The previous prime is 20453029. The next prime is 20453039. The reversal of 20453037 is 73035402.

It is a cyclic number.

It is not a de Polignac number, because 20453037 - 2³ = 20453029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20452998 and 20453016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20453039) 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, 5043 + ... + 8144.

It is an arithmetic number, because the mean of its divisors is an integer number (1899072).

Almost surely, 2^20453037 is an apocalyptic number.

It is an amenable number.

20453037 is a deficient number, since it is larger than the sum of its proper divisors (9932115).

20453037 is a wasteful number, since it uses less digits than its factorization.

20453037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13248.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 20453037 is about 4522.5033996670. The cubic root of 20453037 is about 273.4760308173.

Adding to 20453037 its reverse (73035402), we get a palindrome (93488439).

The spelling of 20453037 in words is "twenty million, four hundred fifty-three thousand, thirty-seven".