16716525025 has 12 divisors (see below), whose sum is σ = 20737539900. Its totient is φ = 13367382080.

The previous prime is 16716524999. The next prime is 16716525037. The reversal of 16716525025 is 52052561761.

It can be written as a sum of positive squares in 6 ways, for example, as 1713214881 + 15003310144 = 41391^2 + 122488^2 .

It is not a de Polignac number, because 16716525025 - 2¹³ = 16716516833 is a prime.

It is a super-2 number, since 2×16716525025² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87070 + ... + 202519.

It is an arithmetic number, because the mean of its divisors is an integer number (1728128325).

Almost surely, 2^16716525025 is an apocalyptic number.

It is an amenable number.

16716525025 is a deficient number, since it is larger than the sum of its proper divisors (4021014875).

16716525025 is a wasteful number, since it uses less digits than its factorization.

16716525025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291908 (or 291903 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 40.

The spelling of 16716525025 in words is "sixteen billion, seven hundred sixteen million, five hundred twenty-five thousand, twenty-five".