54951661 has 8 divisors (see below), whose sum is σ = 55440000. Its totient is φ = 54465840.

The previous prime is 54951643. The next prime is 54951679. The reversal of 54951661 is 16615945.

It is an interprime number because it is at equal distance from previous prime (54951643) and next prime (54951679).

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 54951661 - 2¹¹ = 54949613 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54951661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54951161) 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 7 ways as a sum of consecutive naturals, for example, 91440 + ... + 92038.

It is an arithmetic number, because the mean of its divisors is an integer number (6930000).

Almost surely, 2^54951661 is an apocalyptic number.

It is an amenable number.

54951661 is a deficient number, since it is larger than the sum of its proper divisors (488339).

54951661 is a wasteful number, since it uses less digits than its factorization.

54951661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259.

The product of its digits is 32400, while the sum is 37.

The square root of 54951661 is about 7412.9387559860. The cubic root of 54951661 is about 380.1838007421.

The spelling of 54951661 in words is "fifty-four million, nine hundred fifty-one thousand, six hundred sixty-one".