20148383025 has 27 divisors (see below), whose sum is σ = 36091806699. Its totient is φ = 10744668720.

The previous prime is 20148383023. The next prime is 20148383039. The reversal of 20148383025 is 52038384102.

The square root of 20148383025 is 141945.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7253417889 + 12894965136 = 85167^2 + 113556^2 .

It is not a de Polignac number, because 20148383025 - 2¹ = 20148383023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20148383023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2124444 + ... + 2133906.

Almost surely, 2^20148383025 is an apocalyptic number.

20148383025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20148383025 is the 141945-th square number.

20148383025 is the 70973-rd centered octagonal number.

It is an amenable number.

20148383025 is a deficient number, since it is larger than the sum of its proper divisors (15943423674).

20148383025 is an frugal number, since it uses more digits than its factorization.

20148383025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18942 (or 9471 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

Multiplying 20148383025 by its sum of digits (36), we get a square (725341788900 = 851670²).

The spelling of 20148383025 in words is "twenty billion, one hundred forty-eight million, three hundred eighty-three thousand, twenty-five".