651048830 has 32 divisors (see below), whose sum is σ = 1247314464. Its totient is φ = 243818496.

The previous prime is 651048823. The next prime is 651048857. The reversal of 651048830 is 38840156.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22889 + ... + 42731.

It is an arithmetic number, because the mean of its divisors is an integer number (38978577).

Almost surely, 2^651048830 is an apocalyptic number.

651048830 is a deficient number, since it is larger than the sum of its proper divisors (596265634).

651048830 is a wasteful number, since it uses less digits than its factorization.

651048830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20060.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 651048830 is about 25515.6585256975. The cubic root of 651048830 is about 866.7047716645.

Adding to 651048830 its reverse (38840156), we get a palindrome (689888986).

The spelling of 651048830 in words is "six hundred fifty-one million, forty-eight thousand, eight hundred thirty".