54678961 has 4 divisors (see below), whose sum is σ = 55109632. Its totient is φ = 54248292.

The previous prime is 54678959. The next prime is 54678983. The reversal of 54678961 is 16987645.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 54678961 - 2¹ = 54678959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54678361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215145 + ... + 215398.

It is an arithmetic number, because the mean of its divisors is an integer number (13777408).

Almost surely, 2^54678961 is an apocalyptic number.

It is an amenable number.

54678961 is a deficient number, since it is larger than the sum of its proper divisors (430671).

54678961 is a wasteful number, since it uses less digits than its factorization.

54678961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430670.

The product of its digits is 362880, while the sum is 46.

The square root of 54678961 is about 7394.5223645615. The cubic root of 54678961 is about 379.5538646975.

It can be divided in two parts, 546 and 78961, that added together give a cube (79507 = 43³).

The spelling of 54678961 in words is "fifty-four million, six hundred seventy-eight thousand, nine hundred sixty-one".