20154530524 has 12 divisors (see below), whose sum is σ = 35271677448. Its totient is φ = 10076908400.

The previous prime is 20154530503. The next prime is 20154530549. The reversal of 20154530524 is 42503545102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69054 + ... + 212314.

It is an arithmetic number, because the mean of its divisors is an integer number (2939306454).

Almost surely, 2^20154530524 is an apocalyptic number.

It is an amenable number.

20154530524 is a deficient number, since it is larger than the sum of its proper divisors (15117146924).

20154530524 is a wasteful number, since it uses less digits than its factorization.

20154530524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178436 (or 178434 counting only the distinct ones).

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

The spelling of 20154530524 in words is "twenty billion, one hundred fifty-four million, five hundred thirty thousand, five hundred twenty-four".