961408552 has 48 divisors (see below), whose sum is σ = 1988950140. Its totient is φ = 435322368.

The previous prime is 961408541. The next prime is 961408559. The reversal of 961408552 is 255804169.

It can be written as a sum of positive squares in 6 ways, for example, as 178863876 + 782544676 = 13374^2 + 27974^2 .

It is not an unprimeable number, because it can be changed into a prime (961408559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64948 + ... + 78364.

Almost surely, 2^961408552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 961408552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (994475070).

961408552 is an abundant number, since it is smaller than the sum of its proper divisors (1027541588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

961408552 is a wasteful number, since it uses less digits than its factorization.

961408552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13502 (or 13485 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 961408552 is about 31006.5888481787. The cubic root of 961408552 is about 986.9670645060.

The spelling of 961408552 in words is "nine hundred sixty-one million, four hundred eight thousand, five hundred fifty-two".