1550022 has 8 divisors (see below), whose sum is σ = 3100056. Its totient is φ = 516672.

The previous prime is 1549997. The next prime is 1550027. The reversal of 1550022 is 2200551.

It is a sphenic number, since it is the product of 3 distinct primes.

1550022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1549983 and 1550010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129163 + ... + 129174.

It is an arithmetic number, because the mean of its divisors is an integer number (387507).

2^1550022 is an apocalyptic number.

1550022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1550022 is a wasteful number, since it uses less digits than its factorization.

1550022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258342.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 1550022 is about 1244.9987951801. The cubic root of 1550022 is about 115.7300002609.

Adding to 1550022 its reverse (2200551), we get a palindrome (3750573).

The spelling of 1550022 in words is "one million, five hundred fifty thousand, twenty-two".