73421452525 has 144 divisors (see below), whose sum is σ = 104087980800. Its totient is φ = 51269137920.

The previous prime is 73421452519. The next prime is 73421452529. The reversal of 73421452525 is 52525412437.

It is not a de Polignac number, because 73421452525 - 2¹¹ = 73421450477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73421452529) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 929385436 + ... + 929385514.

It is an arithmetic number, because the mean of its divisors is an integer number (722833200).

Almost surely, 2^73421452525 is an apocalyptic number.

It is an amenable number.

73421452525 is a deficient number, since it is larger than the sum of its proper divisors (30666528275).

73421452525 is a wasteful number, since it uses less digits than its factorization.

73421452525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 252 counting only the distinct ones).

The product of its digits is 336000, while the sum is 40.

The spelling of 73421452525 in words is "seventy-three billion, four hundred twenty-one million, four hundred fifty-two thousand, five hundred twenty-five".