2154025 has 6 divisors (see below), whose sum is σ = 2671022. Its totient is φ = 1723200.

The previous prime is 2154013. The next prime is 2154037. The reversal of 2154025 is 5204512.

It is an interprime number because it is at equal distance from previous prime (2154013) and next prime (2154037).

It can be written as a sum of positive squares in 3 ways, for example, as 1936 + 2152089 = 44^2 + 1467^2 .

It is not a de Polignac number, because 2154025 - 2⁵ = 2153993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2153993 and 2154011.

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, 43056 + ... + 43105.

2^2154025 is an apocalyptic number.

2154025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2154025 is a deficient number, since it is larger than the sum of its proper divisors (516997).

2154025 is an equidigital number, since it uses as much as digits as its factorization.

2154025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86171 (or 86166 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2154025 is about 1467.6597017020. The cubic root of 2154025 is about 129.1467792251.

Adding to 2154025 its reverse (5204512), we get a palindrome (7358537).

The spelling of 2154025 in words is "two million, one hundred fifty-four thousand, twenty-five".