20530154254 has 8 divisors (see below), whose sum is σ = 31100134968. Its totient is φ = 10163442600.

The previous prime is 20530154219. The next prime is 20530154287. The reversal of 20530154254 is 45245103502.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50817012 + ... + 50817415.

It is an arithmetic number, because the mean of its divisors is an integer number (3887516871).

Almost surely, 2^20530154254 is an apocalyptic number.

20530154254 is a deficient number, since it is larger than the sum of its proper divisors (10569980714).

20530154254 is a wasteful number, since it uses less digits than its factorization.

20530154254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101634530.

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 20530154254 its reverse (45245103502), we get a palindrome (65775257756).

The spelling of 20530154254 in words is "twenty billion, five hundred thirty million, one hundred fifty-four thousand, two hundred fifty-four".