10509508551 has 8 divisors (see below), whose sum is σ = 14750187520. Its totient is φ = 6637584312.

The previous prime is 10509508549. The next prime is 10509508561. The reversal of 10509508551 is 15580590501.

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

It is not a de Polignac number, because 10509508551 - 2¹ = 10509508549 is a prime.

It is a super-2 number, since 2×10509508551² (a number of 21 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 (10509508501) 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, 92188615 + ... + 92188728.

It is an arithmetic number, because the mean of its divisors is an integer number (1843773440).

Almost surely, 2^10509508551 is an apocalyptic number.

10509508551 is a deficient number, since it is larger than the sum of its proper divisors (4240678969).

10509508551 is a wasteful number, since it uses less digits than its factorization.

10509508551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184377365.

The product of its (nonzero) digits is 45000, while the sum is 39.

It can be divided in two parts, 1050950 and 8551, that added together give a palindrome (1059501).

The spelling of 10509508551 in words is "ten billion, five hundred nine million, five hundred eight thousand, five hundred fifty-one".