54669621 has 8 divisors (see below), whose sum is σ = 73329984. Its totient is φ = 36227840.

The previous prime is 54669599. The next prime is 54669653. The reversal of 54669621 is 12696645.

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 54669621 - 2⁷ = 54669493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54669621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54669661) 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, 54060 + ... + 55061.

It is an arithmetic number, because the mean of its divisors is an integer number (9166248).

Almost surely, 2^54669621 is an apocalyptic number.

It is an amenable number.

54669621 is a deficient number, since it is larger than the sum of its proper divisors (18660363).

54669621 is a wasteful number, since it uses less digits than its factorization.

54669621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109291.

The product of its digits is 77760, while the sum is 39.

The square root of 54669621 is about 7393.8907890231. The cubic root of 54669621 is about 379.5322522717.

The spelling of 54669621 in words is "fifty-four million, six hundred sixty-nine thousand, six hundred twenty-one".