65557434 has 8 divisors (see below), whose sum is σ = 131114880. Its totient is φ = 21852476.

The previous prime is 65557417. The next prime is 65557477. The reversal of 65557434 is 43475556.

It is a sphenic number, since it is the product of 3 distinct primes.

65557434 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 65557392 and 65557401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5463114 + ... + 5463125.

It is an arithmetic number, because the mean of its divisors is an integer number (16389360).

Almost surely, 2^65557434 is an apocalyptic number.

65557434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

65557434 is a wasteful number, since it uses less digits than its factorization.

65557434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10926244.

The product of its digits is 252000, while the sum is 39.

The square root of 65557434 is about 8096.7545349973. The cubic root of 65557434 is about 403.2186848665.

The spelling of 65557434 in words is "sixty-five million, five hundred fifty-seven thousand, four hundred thirty-four".