55548738 has 24 divisors (see below), whose sum is σ = 137549568. Its totient is φ = 15871032.

The previous prime is 55548737. The next prime is 55548739. The reversal of 55548738 is 83784555.

It is an interprime number because it is at equal distance from previous prime (55548737) and next prime (55548739).

It is a junction number, because it is equal to n+sod(n) for n = 55548693 and 55548702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55548737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 220306 + ... + 220557.

It is an arithmetic number, because the mean of its divisors is an integer number (5731232).

Almost surely, 2^55548738 is an apocalyptic number.

55548738 is an abundant number, since it is smaller than the sum of its proper divisors (82000830).

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

55548738 is a wasteful number, since it uses less digits than its factorization.

55548738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440878 (or 440875 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 55548738 is about 7453.1025754380. The cubic root of 55548738 is about 381.5558052400. Note that the first 3 decimals are identical.

The spelling of 55548738 in words is "fifty-five million, five hundred forty-eight thousand, seven hundred thirty-eight".