551211402254 has 32 divisors (see below), whose sum is σ = 834351670656. Its totient is φ = 273108013920.

The previous prime is 551211402253. The next prime is 551211402277. The reversal of 551211402254 is 452204112155.

It is a self number, because there is not a number n which added to its sum of digits gives 551211402254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551211402253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116705537 + ... + 116710259.

It is an arithmetic number, because the mean of its divisors is an integer number (26073489708).

Almost surely, 2^551211402254 is an apocalyptic number.

551211402254 is a deficient number, since it is larger than the sum of its proper divisors (283140268402).

551211402254 is a wasteful number, since it uses less digits than its factorization.

551211402254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6080.

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 551211402254 in words is "five hundred fifty-one billion, two hundred eleven million, four hundred two thousand, two hundred fifty-four".