551634035240 has 32 divisors (see below), whose sum is σ = 1241197718760. Its totient is φ = 220649856000.

The previous prime is 551634035237. The next prime is 551634035299. The reversal of 551634035240 is 42530436155.

It can be written as a sum of positive squares in 4 ways, for example, as 285128232676 + 266505802564 = 533974^2 + 516242^2 .

It is a junction number, because it is equal to n+sod(n) for n = 551634035194 and 551634035203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4588700 + ... + 4707380.

Almost surely, 2^551634035240 is an apocalyptic number.

It is an amenable number.

551634035240 is an abundant number, since it is smaller than the sum of its proper divisors (689563683520).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551634035240 is a wasteful number, since it uses less digits than its factorization.

551634035240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234893 (or 234889 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 38.

The spelling of 551634035240 in words is "five hundred fifty-one billion, six hundred thirty-four million, thirty-five thousand, two hundred forty".