72560551 has 8 divisors (see below), whose sum is σ = 84491424. Its totient is φ = 61020960.

The previous prime is 72560503. The next prime is 72560557. The reversal of 72560551 is 15506527.

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

It is not a de Polignac number, because 72560551 - 2¹¹ = 72558503 is a prime.

It is a super-2 number, since 2×72560551² = 10530067122847202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72560557) 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, 97420 + ... + 98161.

It is an arithmetic number, because the mean of its divisors is an integer number (10561428).

Almost surely, 2^72560551 is an apocalyptic number.

72560551 is a deficient number, since it is larger than the sum of its proper divisors (11930873).

72560551 is a wasteful number, since it uses less digits than its factorization.

72560551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195641.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 72560551 is about 8518.2481180111. The cubic root of 72560551 is about 417.0935980993.

The spelling of 72560551 in words is "seventy-two million, five hundred sixty thousand, five hundred fifty-one".