54621946 has 4 divisors (see below), whose sum is σ = 81932922. Its totient is φ = 27310972.

The previous prime is 54621937. The next prime is 54621949. The reversal of 54621946 is 64912645.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 47541025 + 7080921 = 6895^2 + 2661^2 .

It is not an unprimeable number, because it can be changed into a prime (54621949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13655485 + ... + 13655488.

Almost surely, 2^54621946 is an apocalyptic number.

54621946 is a deficient number, since it is larger than the sum of its proper divisors (27310976).

54621946 is a wasteful number, since it uses less digits than its factorization.

54621946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27310975.

The product of its digits is 51840, while the sum is 37.

The square root of 54621946 is about 7390.6661404775. Note that the first 3 decimals coincide. The cubic root of 54621946 is about 379.4218956600.

The spelling of 54621946 in words is "fifty-four million, six hundred twenty-one thousand, nine hundred forty-six".