54164691 has 24 divisors (see below), whose sum is σ = 90554880. Its totient is φ = 30556656.

The previous prime is 54164653. The next prime is 54164807. The reversal of 54164691 is 19646145.

54164691 is a `hidden beast` number, since 5 + 4 + 1 + 646 + 9 + 1 = 666.

It is not a de Polignac number, because 54164691 - 2¹⁰ = 54163667 is a prime.

It is a super-2 number, since 2×54164691² = 5867627502250962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54164651) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465 + ... + 10418.

It is an arithmetic number, because the mean of its divisors is an integer number (3773120).

Almost surely, 2^54164691 is an apocalyptic number.

54164691 is a deficient number, since it is larger than the sum of its proper divisors (36390189).

54164691 is a wasteful number, since it uses less digits than its factorization.

54164691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10975 (or 10972 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 54164691 is about 7359.6665005963. Note that the first 3 decimals coincide. The cubic root of 54164691 is about 378.3601799127.

The spelling of 54164691 in words is "fifty-four million, one hundred sixty-four thousand, six hundred ninety-one".