55334140 has 24 divisors (see below), whose sum is σ = 116367552. Its totient is φ = 22102080.

The previous prime is 55334119. The next prime is 55334143. The reversal of 55334140 is 4143355.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55334143) 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, 16702 + ... + 19738.

It is an arithmetic number, because the mean of its divisors is an integer number (4848648).

Almost surely, 2^55334140 is an apocalyptic number.

It is an amenable number.

55334140 is an abundant number, since it is smaller than the sum of its proper divisors (61033412).

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

55334140 is a wasteful number, since it uses less digits than its factorization.

55334140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3957 (or 3955 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 55334140 is about 7438.6920893394. The cubic root of 55334140 is about 381.0638241761.

Adding to 55334140 its reverse (4143355), we get a palindrome (59477495).

The spelling of 55334140 in words is "fifty-five million, three hundred thirty-four thousand, one hundred forty".