73055251 has 4 divisors (see below), whose sum is σ = 75411904. Its totient is φ = 70698600.

The previous prime is 73055173. The next prime is 73055267. The reversal of 73055251 is 15255037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15255037 = 7 ⋅2179291.

It is not a de Polignac number, because 73055251 - 2¹⁷ = 72924179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73055051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178280 + ... + 1178341.

It is an arithmetic number, because the mean of its divisors is an integer number (18852976).

Almost surely, 2^73055251 is an apocalyptic number.

73055251 is a deficient number, since it is larger than the sum of its proper divisors (2356653).

73055251 is a wasteful number, since it uses less digits than its factorization.

73055251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356652.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 73055251 is about 8547.2364539657. The cubic root of 73055251 is about 418.0393326235.

The spelling of 73055251 in words is "seventy-three million, fifty-five thousand, two hundred fifty-one".