1606520525 has 12 divisors (see below), whose sum is σ = 2003220000. Its totient is φ = 1278032880.

The previous prime is 1606520473. The next prime is 1606520551. The reversal of 1606520525 is 5250256061.

It is not a de Polignac number, because 1606520525 - 2⁸ = 1606520269 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1606520491 and 1606520500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 175025 + ... + 183974.

It is an arithmetic number, because the mean of its divisors is an integer number (166935000).

Almost surely, 2^1606520525 is an apocalyptic number.

It is an amenable number.

1606520525 is a deficient number, since it is larger than the sum of its proper divisors (396699475).

1606520525 is a wasteful number, since it uses less digits than its factorization.

1606520525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359188 (or 359183 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1606520525 is about 40081.4236897843. The cubic root of 1606520525 is about 1171.1937860349.

Adding to 1606520525 its reverse (5250256061), we get a palindrome (6856776586).

The spelling of 1606520525 in words is "one billion, six hundred six million, five hundred twenty thousand, five hundred twenty-five".