1420415555 has 8 divisors (see below), whose sum is σ = 1835614032. Its totient is φ = 1048922208.

The previous prime is 1420415539. The next prime is 1420415573. The reversal of 1420415555 is 5555140241.

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

It is a cyclic number.

It is not a de Polignac number, because 1420415555 - 2⁴ = 1420415539 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10926209 + ... + 10926338.

It is an arithmetic number, because the mean of its divisors is an integer number (229451754).

Almost surely, 2^1420415555 is an apocalyptic number.

1420415555 is a deficient number, since it is larger than the sum of its proper divisors (415198477).

1420415555 is a wasteful number, since it uses less digits than its factorization.

1420415555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21852565.

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 1420415555 is about 37688.4008018382. The cubic root of 1420415555 is about 1124.1004971185.

Adding to 1420415555 its reverse (5555140241), we get a palindrome (6975555796).

The spelling of 1420415555 in words is "one billion, four hundred twenty million, four hundred fifteen thousand, five hundred fifty-five".