54121698 has 12 divisors (see below), whose sum is σ = 117263718. Its totient is φ = 18040560.

The previous prime is 54121663. The next prime is 54121699. The reversal of 54121698 is 89612145.

54121698 is a `hidden beast` number, since 541 + 21 + 6 + 98 = 666.

It can be written as a sum of positive squares in only one way, i.e., 34963569 + 19158129 = 5913^2 + 4377^2 .

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (54121699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1503363 + ... + 1503398.

Almost surely, 2^54121698 is an apocalyptic number.

54121698 is an abundant number, since it is smaller than the sum of its proper divisors (63142020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54121698 is a wasteful number, since it uses less digits than its factorization.

54121698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006769 (or 3006766 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 54121698 is about 7356.7450683030. The cubic root of 54121698 is about 378.2600461372.

The spelling of 54121698 in words is "fifty-four million, one hundred twenty-one thousand, six hundred ninety-eight".