1641527625 has 16 divisors (see below), whose sum is σ = 2731502592. Its totient is φ = 875481200.

The previous prime is 1641527621. The next prime is 1641527651. The reversal of 1641527625 is 5267251461.

It is not a de Polignac number, because 1641527625 - 2² = 1641527621 is a prime.

It is a super-2 number, since 2×1641527625² = 5389225887276281250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1641527621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2188329 + ... + 2189078.

It is an arithmetic number, because the mean of its divisors is an integer number (170718912).

Almost surely, 2^1641527625 is an apocalyptic number.

1641527625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1641527625 is a deficient number, since it is larger than the sum of its proper divisors (1089974967).

1641527625 is an equidigital number, since it uses as much as digits as its factorization.

1641527625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377425 (or 4377415 counting only the distinct ones).

The product of its digits is 100800, while the sum is 39.

The square root of 1641527625 is about 40515.7700778351. The cubic root of 1641527625 is about 1179.6397504612.

The spelling of 1641527625 in words is "one billion, six hundred forty-one million, five hundred twenty-seven thousand, six hundred twenty-five".