20253147570 has 48 divisors (see below), whose sum is σ = 52702310232. Its totient is φ = 5396313600.

The previous prime is 20253147539. The next prime is 20253147587. The reversal of 20253147570 is 7574135202.

20253147570 is a `hidden beast` number, since 20 + 2 + 53 + 14 + 7 + 570 = 666.

20253147570 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9489292569 + 10763855001 = 97413^2 + 103749^2 .

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 23 ways as a sum of consecutive naturals, for example, 14404 + ... + 201776.

Almost surely, 2^20253147570 is an apocalyptic number.

20253147570 is an abundant number, since it is smaller than the sum of its proper divisors (32449162662).

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

20253147570 is a wasteful number, since it uses less digits than its factorization.

20253147570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188587 (or 188584 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The spelling of 20253147570 in words is "twenty billion, two hundred fifty-three million, one hundred forty-seven thousand, five hundred seventy".