55311402 has 16 divisors (see below), whose sum is σ = 111287232. Its totient is φ = 18326400.

The previous prime is 55311397. The next prime is 55311407. The reversal of 55311402 is 20411355.

It is an interprime number because it is at equal distance from previous prime (55311397) and next prime (55311407).

It is not an unprimeable number, because it can be changed into a prime (55311407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26599 + ... + 28602.

It is an arithmetic number, because the mean of its divisors is an integer number (6955452).

Almost surely, 2^55311402 is an apocalyptic number.

55311402 is an abundant number, since it is smaller than the sum of its proper divisors (55975830).

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

55311402 is a wasteful number, since it uses less digits than its factorization.

55311402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55373.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 55311402 is about 7437.1635722229. The cubic root of 55311402 is about 381.0116212243.

Adding to 55311402 its reverse (20411355), we get a palindrome (75722757).

The spelling of 55311402 in words is "fifty-five million, three hundred eleven thousand, four hundred two".