2154252025 has 6 divisors (see below), whose sum is σ = 2671272542. Its totient is φ = 1723401600.

The previous prime is 2154252017. The next prime is 2154252043. The reversal of 2154252025 is 5202524512.

It can be written as a sum of positive squares in 3 ways, for example, as 21013056 + 2133238969 = 4584^2 + 46187^2 .

It is not a de Polignac number, because 2154252025 - 2³ = 2154252017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2154251984 and 2154252002.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43085016 + ... + 43085065.

Almost surely, 2^2154252025 is an apocalyptic number.

2154252025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2154252025 is a deficient number, since it is larger than the sum of its proper divisors (517020517).

2154252025 is an equidigital number, since it uses as much as digits as its factorization.

2154252025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86170091 (or 86170086 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 2154252025 is about 46413.9205950111. The cubic root of 2154252025 is about 1291.5131623800.

Adding to 2154252025 its reverse (5202524512), we get a palindrome (7356776537).

The spelling of 2154252025 in words is "two billion, one hundred fifty-four million, two hundred fifty-two thousand, twenty-five".