16525605 has 32 divisors (see below), whose sum is σ = 27371520. Its totient is φ = 8509760.

The previous prime is 16525603. The next prime is 16525627. The reversal of 16525605 is 50652561.

16525605 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16525605 - 2¹ = 16525603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16525601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62704 + ... + 62966.

It is an arithmetic number, because the mean of its divisors is an integer number (855360).

Almost surely, 2^16525605 is an apocalyptic number.

16525605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16525605 is a deficient number, since it is larger than the sum of its proper divisors (10845915).

16525605 is a wasteful number, since it uses less digits than its factorization.

16525605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 16525605 is about 4065.1697381536. The cubic root of 16525605 is about 254.7137888354.

The spelling of 16525605 in words is "sixteen million, five hundred twenty-five thousand, six hundred five".