73528551 has 6 divisors (see below), whose sum is σ = 106207920. Its totient is φ = 49019028.

The previous prime is 73528541. The next prime is 73528577. The reversal of 73528551 is 15582537.

It is not a de Polignac number, because 73528551 - 2⁶ = 73528487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73528501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4084911 + ... + 4084928.

It is an arithmetic number, because the mean of its divisors is an integer number (17701320).

Almost surely, 2^73528551 is an apocalyptic number.

73528551 is a deficient number, since it is larger than the sum of its proper divisors (32679369).

73528551 is a wasteful number, since it uses less digits than its factorization.

73528551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8169845 (or 8169842 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 73528551 is about 8574.8790662026. The cubic root of 73528551 is about 418.9401679954.

The spelling of 73528551 in words is "seventy-three million, five hundred twenty-eight thousand, five hundred fifty-one".