1625727245 has 8 divisors (see below), whose sum is σ = 1954341216. Its totient is φ = 1298269456.

The previous prime is 1625727223. The next prime is 1625727253. The reversal of 1625727245 is 5427275261.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1625727245 - 2¹² = 1625723149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 285947 + ... + 291576.

It is an arithmetic number, because the mean of its divisors is an integer number (244292652).

Almost surely, 2^1625727245 is an apocalyptic number.

It is an amenable number.

1625727245 is a deficient number, since it is larger than the sum of its proper divisors (328613971).

1625727245 is an equidigital number, since it uses as much as digits as its factorization.

1625727245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578091.

The product of its digits is 235200, while the sum is 41.

The square root of 1625727245 is about 40320.3080965411. The cubic root of 1625727245 is about 1175.8427019490.

The spelling of 1625727245 in words is "one billion, six hundred twenty-five million, seven hundred twenty-seven thousand, two hundred forty-five".