551506012 has 6 divisors (see below), whose sum is σ = 965135528. Its totient is φ = 275753004.

The previous prime is 551506001. The next prime is 551506049. The reversal of 551506012 is 210605155.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68938248 + ... + 68938255.

Almost surely, 2^551506012 is an apocalyptic number.

It is an amenable number.

551506012 is a deficient number, since it is larger than the sum of its proper divisors (413629516).

551506012 is a wasteful number, since it uses less digits than its factorization.

551506012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137876507 (or 137876505 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 551506012 is about 23484.1651331275. The cubic root of 551506012 is about 820.0684119009.

The spelling of 551506012 in words is "five hundred fifty-one million, five hundred six thousand, twelve".