16273053225 has 384 divisors, whose sum is σ = 38157557760. Its totient is φ = 6676992000.

The previous prime is 16273053103. The next prime is 16273053227. The reversal of 16273053225 is 52235037261.

16273053225 is a `hidden beast` number, since 1 + 6 + 27 + 305 + 322 + 5 = 666.

It is not a de Polignac number, because 16273053225 - 2¹⁸ = 16272791081 is a prime.

It is a super-2 number, since 2×16273053225² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16273053225.

It is not an unprimeable number, because it can be changed into a prime (16273053227) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 77123370 + ... + 77123580.

It is an arithmetic number, because the mean of its divisors is an integer number (99368640).

Almost surely, 2^16273053225 is an apocalyptic number.

16273053225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16273053225 is an abundant number, since it is smaller than the sum of its proper divisors (21884504535).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16273053225 is a wasteful number, since it uses less digits than its factorization.

16273053225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The spelling of 16273053225 in words is "sixteen billion, two hundred seventy-three million, fifty-three thousand, two hundred twenty-five".