9552061581 has 24 divisors (see below), whose sum is σ = 13285588896. Its totient is φ = 6102401760.

The previous prime is 9552061579. The next prime is 9552061583. The reversal of 9552061581 is 1851602559.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (9552061579) and next prime (9552061583).

It is not a de Polignac number, because 9552061581 - 2¹ = 9552061579 is a prime.

It is a super-2 number, since 2×9552061581² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9552061583) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 277746 + ... + 310236.

It is an arithmetic number, because the mean of its divisors is an integer number (553566204).

Almost surely, 2^9552061581 is an apocalyptic number.

It is an amenable number.

9552061581 is a deficient number, since it is larger than the sum of its proper divisors (3733527315).

9552061581 is a wasteful number, since it uses less digits than its factorization.

9552061581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32633 (or 32590 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 42.

The square root of 9552061581 is about 97734.6488252759. The cubic root of 9552061581 is about 2121.7735826387.

The spelling of 9552061581 in words is "nine billion, five hundred fifty-two million, sixty-one thousand, five hundred eighty-one".