5651501501 has 4 divisors (see below), whose sum is σ = 5651679900. Its totient is φ = 5651323104.

The previous prime is 5651501491. The next prime is 5651501507. The reversal of 5651501501 is 1051051565.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 808037476 + 4843464025 = 28426^2 + 69595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5651501501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5651501507) 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 3 ways as a sum of consecutive naturals, for example, 27416 + ... + 109793.

It is an arithmetic number, because the mean of its divisors is an integer number (1412919975).

Almost surely, 2^5651501501 is an apocalyptic number.

It is an amenable number.

5651501501 is a deficient number, since it is larger than the sum of its proper divisors (178399).

5651501501 is a wasteful number, since it uses less digits than its factorization.

5651501501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178398.

The product of its (nonzero) digits is 3750, while the sum is 29.

The square root of 5651501501 is about 75176.4690644619. The cubic root of 5651501501 is about 1781.2352555488.

The spelling of 5651501501 in words is "five billion, six hundred fifty-one million, five hundred one thousand, five hundred one".