54309645 has 96 divisors (see below), whose sum is σ = 110702592. Its totient is φ = 24385536.

The previous prime is 54309641. The next prime is 54309653. The reversal of 54309645 is 54690345.

It is a happy number.

54309645 is a `hidden beast` number, since 5 + 4 + 3 + 0 + 9 + 645 = 666.

It is not a de Polignac number, because 54309645 - 2² = 54309641 is a prime.

It is a super-3 number, since 3×54309645³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54309641) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 427572 + ... + 427698.

It is an arithmetic number, because the mean of its divisors is an integer number (1153152).

Almost surely, 2^54309645 is an apocalyptic number.

It is an amenable number.

54309645 is an abundant number, since it is smaller than the sum of its proper divisors (56392947).

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

54309645 is a wasteful number, since it uses less digits than its factorization.

54309645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 54309645 is about 7369.5077854630. The cubic root of 54309645 is about 378.6973981780.

The spelling of 54309645 in words is "fifty-four million, three hundred nine thousand, six hundred forty-five".