3659420125 has 8 divisors (see below), whose sum is σ = 4566956472. Its totient is φ = 2927536000.

The previous prime is 3659420081. The next prime is 3659420143. The reversal of 3659420125 is 5210249563.

It can be written as a sum of positive squares in 4 ways, for example, as 609398596 + 3050021529 = 24686^2 + 55227^2 .

It is not a de Polignac number, because 3659420125 - 2¹⁹ = 3658895837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14637556 + ... + 14637805.

It is an arithmetic number, because the mean of its divisors is an integer number (570869559).

Almost surely, 2^3659420125 is an apocalyptic number.

It is an amenable number.

3659420125 is a deficient number, since it is larger than the sum of its proper divisors (907536347).

3659420125 is an equidigital number, since it uses as much as digits as its factorization.

3659420125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29275376 (or 29275366 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 3659420125 is about 60493.1411401326. The cubic root of 3659420125 is about 1541.0051521134.

Adding to 3659420125 its reverse (5210249563), we get a palindrome (8869669688).

The spelling of 3659420125 in words is "three billion, six hundred fifty-nine million, four hundred twenty thousand, one hundred twenty-five".