55423002 has 16 divisors (see below), whose sum is σ = 114668640. Its totient is φ = 17837232.

The previous prime is 55422989. The next prime is 55423013. The reversal of 55423002 is 20032455.

It is a self number, because there is not a number n which added to its sum of digits gives 55423002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159088 + ... + 159435.

It is an arithmetic number, because the mean of its divisors is an integer number (7166790).

Almost surely, 2^55423002 is an apocalyptic number.

55423002 is an abundant number, since it is smaller than the sum of its proper divisors (59245638).

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

55423002 is a wasteful number, since it uses less digits than its factorization.

55423002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318557.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 55423002 is about 7444.6626518601. The cubic root of 55423002 is about 381.2677006205.

Adding to 55423002 its reverse (20032455), we get a palindrome (75455457).

The spelling of 55423002 in words is "fifty-five million, four hundred twenty-three thousand, two".