2154531025 has 24 divisors (see below), whose sum is σ = 2721700800. Its totient is φ = 1691419200.

The previous prime is 2154531019. The next prime is 2154531059. The reversal of 2154531025 is 5201354512.

It is not a de Polignac number, because 2154531025 - 2¹¹ = 2154528977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2154530984 and 2154531002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1236655 + ... + 1238395.

It is an arithmetic number, because the mean of its divisors is an integer number (113404200).

Almost surely, 2^2154531025 is an apocalyptic number.

2154531025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2154531025 is a deficient number, since it is larger than the sum of its proper divisors (567169775).

2154531025 is a wasteful number, since it uses less digits than its factorization.

2154531025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649 (or 2644 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2154531025 is about 46416.9260615134. The cubic root of 2154531025 is about 1291.5689151600.

Adding to 2154531025 its reverse (5201354512), we get a palindrome (7355885537).

The spelling of 2154531025 in words is "two billion, one hundred fifty-four million, five hundred thirty-one thousand, twenty-five".