551662442 has 4 divisors (see below), whose sum is σ = 827493666. Its totient is φ = 275831220.

The previous prime is 551662439. The next prime is 551662469. The reversal of 551662442 is 244266155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 419389441 + 132273001 = 20479^2 + 11501^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137915609 + ... + 137915612.

Almost surely, 2^551662442 is an apocalyptic number.

551662442 is a deficient number, since it is larger than the sum of its proper divisors (275831224).

551662442 is a wasteful number, since it uses less digits than its factorization.

551662442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275831223.

The product of its digits is 57600, while the sum is 35.

The square root of 551662442 is about 23487.4954390629. The cubic root of 551662442 is about 820.1459397198.

The spelling of 551662442 in words is "five hundred fifty-one million, six hundred sixty-two thousand, four hundred forty-two".