55694540 has 24 divisors (see below), whose sum is σ = 127591632. Its totient is φ = 20252480.

The previous prime is 55694521. The next prime is 55694543. The reversal of 55694540 is 4549655.

55694540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55694494 and 55694503.

It is not an unprimeable number, because it can be changed into a prime (55694543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126359 + ... + 126798.

It is an arithmetic number, because the mean of its divisors is an integer number (5316318).

Almost surely, 2^55694540 is an apocalyptic number.

It is an amenable number.

55694540 is an abundant number, since it is smaller than the sum of its proper divisors (71897092).

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

55694540 is a wasteful number, since it uses less digits than its factorization.

55694540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253177 (or 253175 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 55694540 is about 7462.8774611406. The cubic root of 55694540 is about 381.8893441538.

The spelling of 55694540 in words is "fifty-five million, six hundred ninety-four thousand, five hundred forty".