551212034040 has 112 divisors (see below), whose sum is σ = 1859490077400. Its totient is φ = 146989867968.

The previous prime is 551212034027. The next prime is 551212034047. The reversal of 551212034040 is 40430212155.

551212034040 is a `hidden beast` number, since 5 + 51 + 2 + 1 + 203 + 404 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 551212033995 and 551212034013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551212034047) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 9422350 + ... + 9480669.

Almost surely, 2^551212034040 is an apocalyptic number.

It is an amenable number.

551212034040 is an abundant number, since it is smaller than the sum of its proper divisors (1308278043360).

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

551212034040 is a wasteful number, since it uses less digits than its factorization.

551212034040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18903048 (or 18903029 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 551212034040 its reverse (40430212155), we get a palindrome (591642246195).

The spelling of 551212034040 in words is "five hundred fifty-one billion, two hundred twelve million, thirty-four thousand, forty".