55451022 has 32 divisors (see below), whose sum is σ = 126247680. Its totient is φ = 16072320.

The previous prime is 55451017. The next prime is 55451029. The reversal of 55451022 is 22015455.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55450983 and 55451001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55451029) 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, 16747 + ... + 19782.

It is an arithmetic number, because the mean of its divisors is an integer number (3945240).

Almost surely, 2^55451022 is an apocalyptic number.

55451022 is an abundant number, since it is smaller than the sum of its proper divisors (70796658).

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

55451022 is a wasteful number, since it uses less digits than its factorization.

55451022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36568.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 55451022 is about 7446.5442992035. The cubic root of 55451022 is about 381.3319418245.

Adding to 55451022 its reverse (22015455), we get a palindrome (77466477).

The spelling of 55451022 in words is "fifty-five million, four hundred fifty-one thousand, twenty-two".