651560448 has 240 divisors, whose sum is σ = 2205555264. Its totient is φ = 169021440.

The previous prime is 651560447. The next prime is 651560489. The reversal of 651560448 is 844065156.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651560443) 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, 827511 + ... + 828297.

Almost surely, 2^651560448 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 651560448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1102777632).

651560448 is an abundant number, since it is smaller than the sum of its proper divisors (1553994816).

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

651560448 is a wasteful number, since it uses less digits than its factorization.

651560448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833 (or 810 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 651560448 is about 25525.6821260471. The cubic root of 651560448 is about 866.9317416652.

The spelling of 651560448 in words is "six hundred fifty-one million, five hundred sixty thousand, four hundred forty-eight".