55687651 has 8 divisors (see below), whose sum is σ = 58815680. Its totient is φ = 52579368.

The previous prime is 55687579. The next prime is 55687657. The reversal of 55687651 is 15678655.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55687651 - 2⁷ = 55687523 is a prime.

It is a super-2 number, since 2×55687651² = 6202228947795602, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55687598 and 55687607.

It is not an unprimeable number, because it can be changed into a prime (55687657) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1060 + ... + 10606.

It is an arithmetic number, because the mean of its divisors is an integer number (7351960).

Almost surely, 2^55687651 is an apocalyptic number.

55687651 is a deficient number, since it is larger than the sum of its proper divisors (3128029).

55687651 is a wasteful number, since it uses less digits than its factorization.

55687651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9873.

The product of its digits is 252000, while the sum is 43.

The square root of 55687651 is about 7462.4158956735. The cubic root of 55687651 is about 381.8735978816.

The spelling of 55687651 in words is "fifty-five million, six hundred eighty-seven thousand, six hundred fifty-one".