551653355239204 has 81 divisors (see below), whose sum is σ = 1029580020935571. Its totient is φ = 258578284162560.

The previous prime is 551653355239013. The next prime is 551653355239213. The reversal of 551653355239204 is 402932553356155.

The square root of 551653355239204 is 23487302.

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

It can be written as a sum of positive squares in 4 ways, for example, as 16492127102500 + 535161228136704 = 4061050^2 + 23133552^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 225994818624 + ... + 225994821064.

Almost surely, 2^{551653355239204} is an apocalyptic number.

551653355239204 is the 23487302-nd square number.

It is an amenable number.

551653355239204 is a deficient number, since it is larger than the sum of its proper divisors (477926665696367).

551653355239204 is an frugal number, since it uses more digits than its factorization.

551653355239204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5486 (or 2743 counting only the distinct ones).

The product of its (nonzero) digits is 72900000, while the sum is 58.

The spelling of 551653355239204 in words is "five hundred fifty-one trillion, six hundred fifty-three billion, three hundred fifty-five million, two hundred thirty-nine thousand, two hundred four".