16772501 has 2 divisors, whose sum is σ = 16772502. Its totient is φ = 16772500.

The previous prime is 16772491. The next prime is 16772521. The reversal of 16772501 is 10527761.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16443025 + 329476 = 4055^2 + 574^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16772501 is a prime.

It is a Chen prime.

It is a nialpdrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16772521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8386250 + 8386251.

It is an arithmetic number, because the mean of its divisors is an integer number (8386251).

Almost surely, 2^16772501 is an apocalyptic number.

It is an amenable number.

16772501 is a deficient number, since it is larger than the sum of its proper divisors (1).

16772501 is an equidigital number, since it uses as much as digits as its factorization.

16772501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2940, while the sum is 29.

The square root of 16772501 is about 4095.4243980325. The cubic root of 16772501 is about 255.9760160229.

The spelling of 16772501 in words is "sixteen million, seven hundred seventy-two thousand, five hundred one".