55942000 has 80 divisors (see below), whose sum is σ = 137303712. Its totient is φ = 22041600.

The previous prime is 55941997. The next prime is 55942001. The reversal of 55942000 is 24955.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55942001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165832 + ... + 166168.

Almost surely, 2^55942000 is an apocalyptic number.

55942000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55942000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68651856).

55942000 is an abundant number, since it is smaller than the sum of its proper divisors (81361712).

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

55942000 is a wasteful number, since it uses less digits than its factorization.

55942000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 55942000 is about 7479.4384815974. The cubic root of 55942000 is about 382.4541075844.

Adding to 55942000 its reverse (24955), we get a palindrome (55966955).

The spelling of 55942000 in words is "fifty-five million, nine hundred forty-two thousand".