5651256501 has 24 divisors (see below), whose sum is σ = 9428837184. Its totient is φ = 3223532160.

The previous prime is 5651256497. The next prime is 5651256503. The reversal of 5651256501 is 1056521565.

5651256501 is a `hidden beast` number, since 56 + 51 + 2 + 56 + 501 = 666.

It is not a de Polignac number, because 5651256501 - 2² = 5651256497 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5651256503) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1677241 + ... + 1680606.

It is an arithmetic number, because the mean of its divisors is an integer number (392868216).

Almost surely, 2^5651256501 is an apocalyptic number.

5651256501 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5651256501 is a deficient number, since it is larger than the sum of its proper divisors (3777580683).

5651256501 is a wasteful number, since it uses less digits than its factorization.

5651256501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3357881 (or 3357878 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The square root of 5651256501 is about 75174.8395475507. The cubic root of 5651256501 is about 1781.2095155489.

The spelling of 5651256501 in words is "five billion, six hundred fifty-one million, two hundred fifty-six thousand, five hundred one".