3278125653 has 8 divisors (see below), whose sum is σ = 4768182816. Its totient is φ = 1986742800.

The previous prime is 3278125649. The next prime is 3278125681. The reversal of 3278125653 is 3565218723.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3278125653 - 2² = 3278125649 is a prime.

It is a super-2 number, since 2×3278125653² = 21492215593713352818, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3278125633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49668538 + ... + 49668603.

It is an arithmetic number, because the mean of its divisors is an integer number (596022852).

Almost surely, 2^3278125653 is an apocalyptic number.

3278125653 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3278125653 is a deficient number, since it is larger than the sum of its proper divisors (1490057163).

3278125653 is a wasteful number, since it uses less digits than its factorization.

3278125653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99337155.

The product of its digits is 302400, while the sum is 42.

The square root of 3278125653 is about 57254.9181555611. The cubic root of 3278125653 is about 1485.5086971527.

The spelling of 3278125653 in words is "three billion, two hundred seventy-eight million, one hundred twenty-five thousand, six hundred fifty-three".