65555430 has 16 divisors (see below), whose sum is σ = 157333104. Its totient is φ = 17481440.

The previous prime is 65555423. The next prime is 65555437. The reversal of 65555430 is 3455556.

It is an interprime number because it is at equal distance from previous prime (65555423) and next prime (65555437).

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 65555391 and 65555400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65555437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092561 + ... + 1092620.

It is an arithmetic number, because the mean of its divisors is an integer number (9833319).

Almost surely, 2^65555430 is an apocalyptic number.

65555430 is an abundant number, since it is smaller than the sum of its proper divisors (91777674).

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

65555430 is a wasteful number, since it uses less digits than its factorization.

65555430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2185191.

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 65555430 is about 8096.6307807631. The cubic root of 65555430 is about 403.2145762123.

The spelling of 65555430 in words is "sixty-five million, five hundred fifty-five thousand, four hundred thirty".