55540704 has 48 divisors (see below), whose sum is σ = 147184128. Its totient is φ = 18337152.

The previous prime is 55540703. The next prime is 55540721. The reversal of 55540704 is 40704555.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55540703) 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, 7569 + ... + 12975.

It is an arithmetic number, because the mean of its divisors is an integer number (3066336).

Almost surely, 2^55540704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55540704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73592064).

55540704 is an abundant number, since it is smaller than the sum of its proper divisors (91643424).

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

55540704 is a wasteful number, since it uses less digits than its factorization.

55540704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5527 (or 5519 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 55540704 is about 7452.5635857737. The cubic root of 55540704 is about 381.5374095798.

The spelling of 55540704 in words is "fifty-five million, five hundred forty thousand, seven hundred four".