2551520131 has 8 divisors (see below), whose sum is σ = 2637564800. Its totient is φ = 2465709120.

The previous prime is 2551520119. The next prime is 2551520141. The reversal of 2551520131 is 1310251552.

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 2551520131 - 2¹⁷ = 2551389059 is a prime.

It is a super-2 number, since 2×2551520131² = 13020509957796514322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2551520096 and 2551520105.

It is not an unprimeable number, because it can be changed into a prime (2551520141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36066 + ... + 80023.

It is an arithmetic number, because the mean of its divisors is an integer number (329695600).

Almost surely, 2^2551520131 is an apocalyptic number.

2551520131 is a deficient number, since it is larger than the sum of its proper divisors (86044669).

2551520131 is a wasteful number, since it uses less digits than its factorization.

2551520131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116829.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 2551520131 is about 50512.5739890574. The cubic root of 2551520131 is about 1366.4686310778.

Adding to 2551520131 its reverse (1310251552), we get a palindrome (3861771683).

The spelling of 2551520131 in words is "two billion, five hundred fifty-one million, five hundred twenty thousand, one hundred thirty-one".