55030402 has 8 divisors (see below), whose sum is σ = 94337856. Its totient is φ = 23584452.

The previous prime is 55030387. The next prime is 55030427. The reversal of 55030402 is 20403055.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55030402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1965358 + ... + 1965385.

It is an arithmetic number, because the mean of its divisors is an integer number (11792232).

Almost surely, 2^55030402 is an apocalyptic number.

55030402 is a deficient number, since it is larger than the sum of its proper divisors (39307454).

55030402 is a wasteful number, since it uses less digits than its factorization.

55030402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930752.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 55030402 is about 7418.2479063455. The cubic root of 55030402 is about 380.3653042969.

Adding to 55030402 its reverse (20403055), we get a palindrome (75433457).

The spelling of 55030402 in words is "fifty-five million, thirty thousand, four hundred two".