551002402 has 16 divisors (see below), whose sum is σ = 876078720. Its totient is φ = 259011648.

The previous prime is 551002391. The next prime is 551002411. The reversal of 551002402 is 204200155.

It is a self number, because there is not a number n which added to its sum of digits gives 551002402.

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, 24499 + ... + 41257.

It is an arithmetic number, because the mean of its divisors is an integer number (54754920).

Almost surely, 2^551002402 is an apocalyptic number.

551002402 is a deficient number, since it is larger than the sum of its proper divisors (325076318).

551002402 is a wasteful number, since it uses less digits than its factorization.

551002402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17745.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 551002402 is about 23473.4403528754. The cubic root of 551002402 is about 819.8187195935.

Adding to 551002402 its reverse (204200155), we get a palindrome (755202557).

The spelling of 551002402 in words is "five hundred fifty-one million, two thousand, four hundred two".