554761906 has 4 divisors (see below), whose sum is σ = 832142862. Its totient is φ = 277380952.

The previous prime is 554761891. The next prime is 554761951. The reversal of 554761906 is 609167455.

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., 320947225 + 233814681 = 17915^2 + 15291^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138690475 + ... + 138690478.

Almost surely, 2^554761906 is an apocalyptic number.

554761906 is a deficient number, since it is larger than the sum of its proper divisors (277380956).

554761906 is a wasteful number, since it uses less digits than its factorization.

554761906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277380955.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 554761906 is about 23553.3841729803. The cubic root of 554761906 is about 821.6790432621.

The spelling of 554761906 in words is "five hundred fifty-four million, seven hundred sixty-one thousand, nine hundred six".