72600030551 has 4 divisors (see below), whose sum is σ = 72602233704. Its totient is φ = 72597827400.

The previous prime is 72600030479. The next prime is 72600030553. The reversal of 72600030551 is 15503000627.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72600030551 - 2¹⁸ = 72599768407 is a prime.

It is a super-2 number, since 2×72600030551² (a number of 23 digits) 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 (72600030553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051385 + ... + 1118306.

It is an arithmetic number, because the mean of its divisors is an integer number (18150558426).

Almost surely, 2^72600030551 is an apocalyptic number.

72600030551 is a deficient number, since it is larger than the sum of its proper divisors (2203153).

72600030551 is a wasteful number, since it uses less digits than its factorization.

72600030551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203152.

The product of its (nonzero) digits is 6300, while the sum is 29.

The spelling of 72600030551 in words is "seventy-two billion, six hundred million, thirty thousand, five hundred fifty-one".