54657969 has 8 divisors (see below), whose sum is σ = 73204992. Its totient is φ = 36274800.

The previous prime is 54657943. The next prime is 54657971. The reversal of 54657969 is 96975645.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 54657969 - 2¹⁵ = 54625201 is a prime.

It is a super-2 number, since 2×54657969² = 5974987150409922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (54657979) 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, 40182 + ... + 41519.

It is an arithmetic number, because the mean of its divisors is an integer number (9150624).

Almost surely, 2^54657969 is an apocalyptic number.

It is an amenable number.

54657969 is a deficient number, since it is larger than the sum of its proper divisors (18547023).

54657969 is a wasteful number, since it uses less digits than its factorization.

54657969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81927.

The product of its digits is 2041200, while the sum is 51.

The square root of 54657969 is about 7393.1027992312. The cubic root of 54657969 is about 379.5052865093.

The spelling of 54657969 in words is "fifty-four million, six hundred fifty-seven thousand, nine hundred sixty-nine".