5601615551 has 16 divisors (see below), whose sum is σ = 6494811648. Its totient is φ = 4732106400.

The previous prime is 5601615533. The next prime is 5601615557. The reversal of 5601615551 is 1555161065.

It is a de Polignac number, because none of the positive numbers 2^k-5601615551 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5601615557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133721 + ... + 170541.

It is an arithmetic number, because the mean of its divisors is an integer number (405925728).

Almost surely, 2^5601615551 is an apocalyptic number.

5601615551 is a deficient number, since it is larger than the sum of its proper divisors (893196097).

5601615551 is a wasteful number, since it uses less digits than its factorization.

5601615551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37142.

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 5601615551 is about 74843.9413112377. The cubic root of 5601615551 is about 1775.9787554230.

The spelling of 5601615551 in words is "five billion, six hundred one million, six hundred fifteen thousand, five hundred fifty-one".