2156456325 has 12 divisors (see below), whose sum is σ = 3565341248. Its totient is φ = 1150110000.

The previous prime is 2156456293. The next prime is 2156456399. The reversal of 2156456325 is 5236546512.

It is not a de Polignac number, because 2156456325 - 2⁵ = 2156456293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14376301 + ... + 14376450.

Almost surely, 2^2156456325 is an apocalyptic number.

2156456325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2156456325 is a deficient number, since it is larger than the sum of its proper divisors (1408884923).

2156456325 is a wasteful number, since it uses less digits than its factorization.

2156456325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28752764 (or 28752759 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The square root of 2156456325 is about 46437.6606322928. The cubic root of 2156456325 is about 1291.9535181624.

The spelling of 2156456325 in words is "two billion, one hundred fifty-six million, four hundred fifty-six thousand, three hundred twenty-five".