551481493924 has 27 divisors (see below), whose sum is σ = 971921533611. Its totient is φ = 273803256600.

The previous prime is 551481493921. The next prime is 551481493951. The reversal of 551481493924 is 429394184155.

The square root of 551481493924 is 742618.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551481493921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 224269407 + ... + 224271865.

Almost surely, 2^551481493924 is an apocalyptic number.

551481493924 is the 742618-th square number.

It is an amenable number.

551481493924 is a deficient number, since it is larger than the sum of its proper divisors (420440039687).

551481493924 is an frugal number, since it uses more digits than its factorization.

551481493924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5224 (or 2612 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 55.

The spelling of 551481493924 in words is "five hundred fifty-one billion, four hundred eighty-one million, four hundred ninety-three thousand, nine hundred twenty-four".