5651491530 has 32 divisors (see below), whose sum is σ = 13575034944. Its totient is φ = 1505791616.

The previous prime is 5651491511. The next prime is 5651491597. The reversal of 5651491530 is 351941565.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43164 + ... + 114743.

It is an arithmetic number, because the mean of its divisors is an integer number (424219842).

Almost surely, 2^5651491530 is an apocalyptic number.

5651491530 is an abundant number, since it is smaller than the sum of its proper divisors (7923543414).

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

5651491530 is a wasteful number, since it uses less digits than its factorization.

5651491530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159110.

The product of its (nonzero) digits is 81000, while the sum is 39.

The square root of 5651491530 is about 75176.4027471387. The cubic root of 5651491530 is about 1781.2342079979.

The spelling of 5651491530 in words is "five billion, six hundred fifty-one million, four hundred ninety-one thousand, five hundred thirty".