55653140 has 24 divisors (see below), whose sum is σ = 117069792. Its totient is φ = 22223520.

The previous prime is 55653133. The next prime is 55653151. The reversal of 55653140 is 4135655.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11807 + ... + 15833.

It is an arithmetic number, because the mean of its divisors is an integer number (4877908).

Almost surely, 2^55653140 is an apocalyptic number.

It is an amenable number.

55653140 is an abundant number, since it is smaller than the sum of its proper divisors (61416652).

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

55653140 is a wasteful number, since it uses less digits than its factorization.

55653140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4727 (or 4725 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 55653140 is about 7460.1032164441. The cubic root of 55653140 is about 381.7946961092.

Adding to 55653140 its reverse (4135655), we get a palindrome (59788795).

The spelling of 55653140 in words is "fifty-five million, six hundred fifty-three thousand, one hundred forty".