20547302401 has 16 divisors (see below), whose sum is σ = 21368096640. Its totient is φ = 19734220800.

The previous prime is 20547302387. The next prime is 20547302407. The reversal of 20547302401 is 10420374502.

It is a cyclic number.

It is not a de Polignac number, because 20547302401 - 2⁷ = 20547302273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20547302401.

It is not an unprimeable number, because it can be changed into a prime (20547302407) 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, 7205626 + ... + 7208476.

It is an arithmetic number, because the mean of its divisors is an integer number (1335506040).

Almost surely, 2^20547302401 is an apocalyptic number.

It is an amenable number.

20547302401 is a deficient number, since it is larger than the sum of its proper divisors (820794239).

20547302401 is a wasteful number, since it uses less digits than its factorization.

20547302401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4104.

The product of its (nonzero) digits is 6720, while the sum is 28.

Adding to 20547302401 its reverse (10420374502), we get a palindrome (30967676903).

The spelling of 20547302401 in words is "twenty billion, five hundred forty-seven million, three hundred two thousand, four hundred one".