73251251 has 8 divisors (see below), whose sum is σ = 80459520. Its totient is φ = 66378312.

The previous prime is 73251229. The next prime is 73251253. The reversal of 73251251 is 15215237.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73251251 - 2¹⁸ = 72989107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73251251.

It is not an unprimeable number, because it can be changed into a prime (73251253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83375 + ... + 84248.

It is an arithmetic number, because the mean of its divisors is an integer number (10057440).

Almost surely, 2^73251251 is an apocalyptic number.

73251251 is a deficient number, since it is larger than the sum of its proper divisors (7208269).

73251251 is a wasteful number, since it uses less digits than its factorization.

73251251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167665.

The product of its digits is 2100, while the sum is 26.

The square root of 73251251 is about 8558.6944682002. The cubic root of 73251251 is about 418.4128514875.

Adding to 73251251 its reverse (15215237), we get a palindrome (88466488).

The spelling of 73251251 in words is "seventy-three million, two hundred fifty-one thousand, two hundred fifty-one".