4451521601125 has 64 divisors (see below), whose sum is σ = 5780465832960. Its totient is φ = 3419620416000.

The previous prime is 4451521601113. The next prime is 4451521601167. The reversal of 4451521601125 is 5211061251544.

It is not a de Polignac number, because 4451521601125 - 2²⁷ = 4451387383397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 398840545 + ... + 398851705.

It is an arithmetic number, because the mean of its divisors is an integer number (90319778640).

Almost surely, 2^{4451521601125} is an apocalyptic number.

It is an amenable number.

4451521601125 is a deficient number, since it is larger than the sum of its proper divisors (1328944231835).

4451521601125 is a wasteful number, since it uses less digits than its factorization.

4451521601125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12335 (or 12325 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 37.

Adding to 4451521601125 its reverse (5211061251544), we get a palindrome (9662582852669).

The spelling of 4451521601125 in words is "four trillion, four hundred fifty-one billion, five hundred twenty-one million, six hundred one thousand, one hundred twenty-five".