54999072 has 162 divisors, whose sum is σ = 172557567. Its totient is φ = 16612992.

The previous prime is 54999067. The next prime is 54999073. The reversal of 54999072 is 27099945.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

54999072 is a `hidden beast` number, since 5 + 499 + 90 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27499536 + 27499536 = 5244^2 + 5244^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5244.

It is a super-2 number, since 2×54999072² = 6049795841722368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (54999073) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2391253 + ... + 2391275.

Almost surely, 2^54999072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54999072

54999072 is an abundant number, since it is smaller than the sum of its proper divisors (117558495).

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

54999072 is a wasteful number, since it uses less digits than its factorization.

54999072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 54999072 is about 7416.1359210845. The cubic root of 54999072 is about 380.2931071915.

The spelling of 54999072 in words is "fifty-four million, nine hundred ninety-nine thousand, seventy-two".