551435552040 has 64 divisors (see below), whose sum is σ = 1689504687360. Its totient is φ = 143920766720.

The previous prime is 551435551967. The next prime is 551435552099. The reversal of 551435552040 is 40255534155.

It is a self number, because there is not a number n which added to its sum of digits gives 551435552040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48880491 + ... + 48891770.

It is an arithmetic number, because the mean of its divisors is an integer number (26398510740).

Almost surely, 2^551435552040 is an apocalyptic number.

It is an amenable number.

551435552040 is an abundant number, since it is smaller than the sum of its proper divisors (1138069135320).

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

551435552040 is a wasteful number, since it uses less digits than its factorization.

551435552040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97772322 (or 97772318 counting only the distinct ones).

The product of its (nonzero) digits is 300000, while the sum is 39.

The spelling of 551435552040 in words is "five hundred fifty-one billion, four hundred thirty-five million, five hundred fifty-two thousand, forty".