12551053531 has 8 divisors (see below), whose sum is σ = 12939293664. Its totient is φ = 12165393600.

The previous prime is 12551053513. The next prime is 12551053577. The reversal of 12551053531 is 13535015521.

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 12551053531 - 2⁹ = 12551053019 is a prime.

It is a super-2 number, since 2×12551053531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12551053493 and 12551053502.

It is not an unprimeable number, because it can be changed into a prime (12551051531) 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, 635170 + ... + 654631.

It is an arithmetic number, because the mean of its divisors is an integer number (1617411708).

Almost surely, 2^12551053531 is an apocalyptic number.

12551053531 is a deficient number, since it is larger than the sum of its proper divisors (388240133).

12551053531 is a wasteful number, since it uses less digits than its factorization.

12551053531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290101.

The product of its (nonzero) digits is 11250, while the sum is 31.

The spelling of 12551053531 in words is "twelve billion, five hundred fifty-one million, fifty-three thousand, five hundred thirty-one".