551435500040 has 32 divisors (see below), whose sum is σ = 1240757046360. Its totient is φ = 220569369600.

The previous prime is 551435500039. The next prime is 551435500043. The reversal of 551435500040 is 40005534155.

It can be written as a sum of positive squares in 4 ways, for example, as 199399757764 + 352035742276 = 446542^2 + 593326^2 .

It is a super-2 number, since 2×551435500040² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (551435500043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2120330 + ... + 2366150.

Almost surely, 2^551435500040 is an apocalyptic number.

It is an amenable number.

551435500040 is an abundant number, since it is smaller than the sum of its proper divisors (689321546320).

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

551435500040 is a wasteful number, since it uses less digits than its factorization.

551435500040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301913 (or 301909 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 32.

The spelling of 551435500040 in words is "five hundred fifty-one billion, four hundred thirty-five million, five hundred thousand, forty".