20500470142254 has 48 divisors (see below), whose sum is σ = 45949966966800. Its totient is φ = 6597760944768.

The previous prime is 20500470142219. The next prime is 20500470142277. The reversal of 20500470142254 is 45224107400502.

20500470142254 is a `hidden beast` number, since 2 + 0 + 500 + 4 + 7 + 0 + 142 + 2 + 5 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44413402 + ... + 44872610.

It is an arithmetic number, because the mean of its divisors is an integer number (957290978475).

Almost surely, 2^{20500470142254} is an apocalyptic number.

20500470142254 is an abundant number, since it is smaller than the sum of its proper divisors (25449496824546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20500470142254 is a wasteful number, since it uses less digits than its factorization.

20500470142254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544769 (or 544766 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 36.

Adding to 20500470142254 its reverse (45224107400502), we get a palindrome (65724577542756).

The spelling of 20500470142254 in words is "twenty trillion, five hundred billion, four hundred seventy million, one hundred forty-two thousand, two hundred fifty-four".