2154502025 has 12 divisors (see below), whose sum is σ = 2877089292. Its totient is φ = 1591016640.

The previous prime is 2154502013. The next prime is 2154502061. The reversal of 2154502025 is 5202054512.

It can be written as a sum of positive squares in 6 ways, for example, as 324288064 + 1830213961 = 18008^2 + 42781^2 .

It is not a de Polignac number, because 2154502025 - 2⁶ = 2154501961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2154501985 and 2154502003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3314294 + ... + 3314943.

It is an arithmetic number, because the mean of its divisors is an integer number (239757441).

Almost surely, 2^2154502025 is an apocalyptic number.

2154502025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2154502025 is a deficient number, since it is larger than the sum of its proper divisors (722587267).

2154502025 is a wasteful number, since it uses less digits than its factorization.

2154502025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629260 (or 6629255 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2154502025 is about 46416.6136744162. The cubic root of 2154502025 is about 1291.5631202923.

Adding to 2154502025 its reverse (5202054512), we get a palindrome (7356556537).

The spelling of 2154502025 in words is "two billion, one hundred fifty-four million, five hundred two thousand, twenty-five".