55447651 has 8 divisors (see below), whose sum is σ = 64171520. Its totient is φ = 46924488.

The previous prime is 55447649. The next prime is 55447673. The reversal of 55447651 is 15674455.

It is a happy number.

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 55447651 - 2¹ = 55447649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55447651.

It is not an unprimeable number, because it can be changed into a prime (55447751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49581 + ... + 50686.

It is an arithmetic number, because the mean of its divisors is an integer number (8021440).

Almost surely, 2^55447651 is an apocalyptic number.

55447651 is a deficient number, since it is larger than the sum of its proper divisors (8723869).

55447651 is a wasteful number, since it uses less digits than its factorization.

55447651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100353.

The product of its digits is 84000, while the sum is 37.

The square root of 55447651 is about 7446.3179491612. The cubic root of 55447651 is about 381.3242143082.

It can be divided in two parts, 554 and 47651, that added together give a triangular number (48205 = T₃₁₀).

The spelling of 55447651 in words is "fifty-five million, four hundred forty-seven thousand, six hundred fifty-one".