54782621 has 8 divisors (see below), whose sum is σ = 55844640. Its totient is φ = 53725168.

The previous prime is 54782603. The next prime is 54782627. The reversal of 54782621 is 12628745.

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 54782621 - 2⁶ = 54782557 is a prime.

It is a super-2 number, since 2×54782621² = 6002271127259282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54782627) 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, 32030 + ... + 33696.

It is an arithmetic number, because the mean of its divisors is an integer number (6980580).

Almost surely, 2^54782621 is an apocalyptic number.

It is an amenable number.

54782621 is a deficient number, since it is larger than the sum of its proper divisors (1062019).

54782621 is a wasteful number, since it uses less digits than its factorization.

54782621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283.

The product of its digits is 26880, while the sum is 35.

The square root of 54782621 is about 7401.5282881308. The cubic root of 54782621 is about 379.7935651600.

The spelling of 54782621 in words is "fifty-four million, seven hundred eighty-two thousand, six hundred twenty-one".