5520531951 has 18 divisors (see below), whose sum is σ = 8764923440. Its totient is φ = 3345776280.

The previous prime is 5520531949. The next prime is 5520531971. The reversal of 5520531951 is 1591350255.

5520531951 is a `hidden beast` number, since 55 + 20 + 531 + 9 + 51 = 666.

It is not a de Polignac number, because 5520531951 - 2¹ = 5520531949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5520531971) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2533591 + ... + 2535768.

Almost surely, 2^5520531951 is an apocalyptic number.

5520531951 is a deficient number, since it is larger than the sum of its proper divisors (3244391489).

5520531951 is a wasteful number, since it uses less digits than its factorization.

5520531951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5069387 (or 5069373 counting only the distinct ones).

The product of its (nonzero) digits is 33750, while the sum is 36.

The square root of 5520531951 is about 74300.2823076736. The cubic root of 5520531951 is about 1767.3679533669.

The spelling of 5520531951 in words is "five billion, five hundred twenty million, five hundred thirty-one thousand, nine hundred fifty-one".