1617967325 has 48 divisors (see below), whose sum is σ = 2313393600. Its totient is φ = 1112486400.

The previous prime is 1617967277. The next prime is 1617967327. The reversal of 1617967325 is 5237697161.

It is a happy number.

It is not a de Polignac number, because 1617967325 - 2²⁶ = 1550858461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1617967325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1617967327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 362105 + ... + 366545.

It is an arithmetic number, because the mean of its divisors is an integer number (48195700).

Almost surely, 2^1617967325 is an apocalyptic number.

It is an amenable number.

1617967325 is a deficient number, since it is larger than the sum of its proper divisors (695426275).

1617967325 is a wasteful number, since it uses less digits than its factorization.

1617967325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542 (or 4537 counting only the distinct ones).

The product of its digits is 476280, while the sum is 47.

The square root of 1617967325 is about 40223.9645609430. The cubic root of 1617967325 is about 1173.9688735753.

The spelling of 1617967325 in words is "one billion, six hundred seventeen million, nine hundred sixty-seven thousand, three hundred twenty-five".