1625255247 has 64 divisors (see below), whose sum is σ = 2762440704. Its totient is φ = 825517440.

The previous prime is 1625255227. The next prime is 1625255251. The reversal of 1625255247 is 7425525261.

It is not a de Polignac number, because 1625255247 - 2⁶ = 1625255183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625255227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2677218 + ... + 2677824.

It is an arithmetic number, because the mean of its divisors is an integer number (43163136).

Almost surely, 2^1625255247 is an apocalyptic number.

1625255247 is a deficient number, since it is larger than the sum of its proper divisors (1137185457).

1625255247 is a wasteful number, since it uses less digits than its factorization.

1625255247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868.

The product of its digits is 168000, while the sum is 39.

The square root of 1625255247 is about 40314.4545665695. The cubic root of 1625255247 is about 1175.7288966505.

The spelling of 1625255247 in words is "one billion, six hundred twenty-five million, two hundred fifty-five thousand, two hundred forty-seven".