55031403402 has 40 divisors (see below), whose sum is σ = 123827140800. Its totient is φ = 18267035976.

The previous prime is 55031403377. The next prime is 55031403437. The reversal of 55031403402 is 20430413055.

55031403402 is a `hidden beast` number, since 5 + 5 + 0 + 314 + 0 + 340 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 671952 + ... + 749387.

It is an arithmetic number, because the mean of its divisors is an integer number (3095678520).

Almost surely, 2^55031403402 is an apocalyptic number.

55031403402 is an abundant number, since it is smaller than the sum of its proper divisors (68795737398).

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

55031403402 is a wasteful number, since it uses less digits than its factorization.

55031403402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421592 (or 1421583 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 55031403402 its reverse (20430413055), we get a palindrome (75461816457).

The spelling of 55031403402 in words is "fifty-five billion, thirty-one million, four hundred three thousand, four hundred two".