1611452625 has 16 divisors (see below), whose sum is σ = 2681457792. Its totient is φ = 859441200.

The previous prime is 1611452603. The next prime is 1611452641. The reversal of 1611452625 is 5262541161.

It is not a de Polignac number, because 1611452625 - 2⁹ = 1611452113 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 2148229 + ... + 2148978.

It is an arithmetic number, because the mean of its divisors is an integer number (167591112).

Almost surely, 2^1611452625 is an apocalyptic number.

1611452625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1611452625 is a deficient number, since it is larger than the sum of its proper divisors (1070005167).

1611452625 is an equidigital number, since it uses as much as digits as its factorization.

1611452625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4297225 (or 4297215 counting only the distinct ones).

The product of its digits is 14400, while the sum is 33.

The square root of 1611452625 is about 40142.9025482712. The cubic root of 1611452625 is about 1172.3911031595.

Adding to 1611452625 its reverse (5262541161), we get a palindrome (6873993786).

The spelling of 1611452625 in words is "one billion, six hundred eleven million, four hundred fifty-two thousand, six hundred twenty-five".