54693140 has 24 divisors (see below), whose sum is σ = 115699752. Its totient is φ = 21716480.

The previous prime is 54693113. The next prime is 54693143. The reversal of 54693140 is 4139645.

It can be written as a sum of positive squares in 4 ways, for example, as 18645124 + 36048016 = 4318^2 + 6004^2 .

It is a junction number, because it is equal to n+sod(n) for n = 54693097 and 54693106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54693143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7241 + ... + 12720.

It is an arithmetic number, because the mean of its divisors is an integer number (4820823).

Almost surely, 2^54693140 is an apocalyptic number.

It is an amenable number.

54693140 is an abundant number, since it is smaller than the sum of its proper divisors (61006612).

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

54693140 is a wasteful number, since it uses less digits than its factorization.

54693140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20107 (or 20105 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 54693140 is about 7395.4810526429. The cubic root of 54693140 is about 379.5866696925.

The spelling of 54693140 in words is "fifty-four million, six hundred ninety-three thousand, one hundred forty".