551461204455 has 48 divisors (see below), whose sum is σ = 1027277230464. Its totient is φ = 251879396160.

The previous prime is 551461204433. The next prime is 551461204577. The reversal of 551461204455 is 554402164155.

It is a happy number.

It is not a de Polignac number, because 551461204455 - 2¹⁰ = 551461203431 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 532240 + ... + 1177370.

It is an arithmetic number, because the mean of its divisors is an integer number (21401608968).

Almost surely, 2^551461204455 is an apocalyptic number.

551461204455 is a deficient number, since it is larger than the sum of its proper divisors (475816026009).

551461204455 is a wasteful number, since it uses less digits than its factorization.

551461204455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646316 (or 646309 counting only the distinct ones).

The product of its (nonzero) digits is 480000, while the sum is 42.

The spelling of 551461204455 in words is "five hundred fifty-one billion, four hundred sixty-one million, two hundred four thousand, four hundred fifty-five".