16742525 has 6 divisors (see below), whose sum is σ = 20760762. Its totient is φ = 13394000.

The previous prime is 16742521. The next prime is 16742527. The reversal of 16742525 is 52524761.

It can be written as a sum of positive squares in 3 ways, for example, as 4618201 + 12124324 = 2149^2 + 3482^2 .

It is not a de Polignac number, because 16742525 - 2² = 16742521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16742491 and 16742500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16742521) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 334826 + ... + 334875.

It is an arithmetic number, because the mean of its divisors is an integer number (3460127).

Almost surely, 2^16742525 is an apocalyptic number.

It is an amenable number.

16742525 is a deficient number, since it is larger than the sum of its proper divisors (4018237).

16742525 is an equidigital number, since it uses as much as digits as its factorization.

16742525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669711 (or 669706 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 16742525 is about 4091.7630674319. The cubic root of 16742525 is about 255.8234306935.

The spelling of 16742525 in words is "sixteen million, seven hundred forty-two thousand, five hundred twenty-five".