1641350625 has 40 divisors (see below), whose sum is σ = 2878703520. Its totient is φ = 829296000.

The previous prime is 1641350621. The next prime is 1641350639. The reversal of 1641350625 is 5260531461.

It is not a de Polignac number, because 1641350625 - 2² = 1641350621 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1641350621) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 12589 + ... + 58661.

It is an arithmetic number, because the mean of its divisors is an integer number (71967588).

Almost surely, 2^1641350625 is an apocalyptic number.

1641350625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1641350625 is a deficient number, since it is larger than the sum of its proper divisors (1237352895).

1641350625 is an equidigital number, since it uses as much as digits as its factorization.

1641350625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46115 (or 46100 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1641350625 is about 40513.5856843109. The cubic root of 1641350625 is about 1179.5973501714.

The spelling of 1641350625 in words is "one billion, six hundred forty-one million, three hundred fifty thousand, six hundred twenty-five".