72755351 has 4 divisors (see below), whose sum is σ = 76584600. Its totient is φ = 68926104.

The previous prime is 72755341. The next prime is 72755363. The reversal of 72755351 is 15355727.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15355727 = 499 ⋅30773.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72755351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72755341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1914596 + ... + 1914633.

It is an arithmetic number, because the mean of its divisors is an integer number (19146150).

Almost surely, 2^72755351 is an apocalyptic number.

72755351 is a deficient number, since it is larger than the sum of its proper divisors (3829249).

72755351 is a wasteful number, since it uses less digits than its factorization.

72755351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829248.

The product of its digits is 36750, while the sum is 35.

The square root of 72755351 is about 8529.6747300234. The cubic root of 72755351 is about 417.4665152965.

The spelling of 72755351 in words is "seventy-two million, seven hundred fifty-five thousand, three hundred fifty-one".