20531386054 has 8 divisors (see below), whose sum is σ = 32417978040. Its totient is φ = 9725393376.

The previous prime is 20531386037. The next prime is 20531386061. The reversal of 20531386054 is 45068313502.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270149779 + ... + 270149854.

It is an arithmetic number, because the mean of its divisors is an integer number (4052247255).

Almost surely, 2^20531386054 is an apocalyptic number.

20531386054 is a deficient number, since it is larger than the sum of its proper divisors (11886591986).

20531386054 is a wasteful number, since it uses less digits than its factorization.

20531386054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540299654.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 20531386054 its reverse (45068313502), we get a palindrome (65599699556).

The spelling of 20531386054 in words is "twenty billion, five hundred thirty-one million, three hundred eighty-six thousand, fifty-four".