54642969 has 12 divisors (see below), whose sum is σ = 81062436. Its totient is φ = 35443872.

The previous prime is 54642961. The next prime is 54642977. The reversal of 54642969 is 96924645.

54642969 is a `hidden beast` number, since 546 + 42 + 9 + 69 = 666.

It is an interprime number because it is at equal distance from previous prime (54642961) and next prime (54642977).

It can be written as a sum of positive squares in 2 ways, for example, as 38937600 + 15705369 = 6240^2 + 3963^2 .

It is not a de Polignac number, because 54642969 - 2³ = 54642961 is a prime.

It is a super-2 number, since 2×54642969² = 5971708122269922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54642961) 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 11 ways as a sum of consecutive naturals, for example, 81714 + ... + 82379.

It is an arithmetic number, because the mean of its divisors is an integer number (6755203).

Almost surely, 2^54642969 is an apocalyptic number.

It is an amenable number.

54642969 is a deficient number, since it is larger than the sum of its proper divisors (26419467).

54642969 is a wasteful number, since it uses less digits than its factorization.

54642969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164136 (or 164133 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 54642969 is about 7392.0882705769. The cubic root of 54642969 is about 379.4705669602.

It can be divided in two parts, 54642 and 969, that added together give a triangular number (55611 = T₃₃₃).

The spelling of 54642969 in words is "fifty-four million, six hundred forty-two thousand, nine hundred sixty-nine".