55405351434 has 64 divisors (see below), whose sum is σ = 112916643840. Its totient is φ = 18121896000.

The previous prime is 55405351367. The next prime is 55405351439. The reversal of 55405351434 is 43415350455.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 55405351392 and 55405351401.

It is not an unprimeable number, because it can be changed into a prime (55405351439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27171787 + ... + 27173825.

It is an arithmetic number, because the mean of its divisors is an integer number (1764322560).

Almost surely, 2^55405351434 is an apocalyptic number.

55405351434 is an abundant number, since it is smaller than the sum of its proper divisors (57511292406).

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

55405351434 is a wasteful number, since it uses less digits than its factorization.

55405351434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547.

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 55405351434 in words is "fifty-five billion, four hundred five million, three hundred fifty-one thousand, four hundred thirty-four".