3551273616525 has 24 divisors (see below), whose sum is σ = 5871995995584. Its totient is φ = 1893832934400.

The previous prime is 3551273616521. The next prime is 3551273616551. The reversal of 3551273616525 is 5256163721553.

It is not a de Polignac number, because 3551273616525 - 2² = 3551273616521 is a prime.

It is a super-2 number, since 2×3551273616525² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3551273616521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1447956 + ... + 3033005.

It is an arithmetic number, because the mean of its divisors is an integer number (244666499816).

Almost surely, 2^{3551273616525} is an apocalyptic number.

It is an amenable number.

3551273616525 is a deficient number, since it is larger than the sum of its proper divisors (2320722379059).

3551273616525 is a wasteful number, since it uses less digits than its factorization.

3551273616525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4491541 (or 4491536 counting only the distinct ones).

The product of its digits is 5670000, while the sum is 51.

The spelling of 3551273616525 in words is "three trillion, five hundred fifty-one billion, two hundred seventy-three million, six hundred sixteen thousand, five hundred twenty-five".