1055420345 has 16 divisors (see below), whose sum is σ = 1497346560. Its totient is φ = 698760384.

The previous prime is 1055420321. The next prime is 1055420369. The reversal of 1055420345 is 5430245501.

It is an interprime number because it is at equal distance from previous prime (1055420321) and next prime (1055420369).

It is not a de Polignac number, because 1055420345 - 2⁸ = 1055420089 is a prime.

It is a super-3 number, since 3×1055420345³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 518897 + ... + 520926.

It is an arithmetic number, because the mean of its divisors is an integer number (93584160).

Almost surely, 2^1055420345 is an apocalyptic number.

It is an amenable number.

1055420345 is a deficient number, since it is larger than the sum of its proper divisors (441926215).

1055420345 is a wasteful number, since it uses less digits than its factorization.

1055420345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039864.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1055420345 is about 32487.2335695116. The cubic root of 1055420345 is about 1018.1423142902.

Adding to 1055420345 its reverse (5430245501), we get a palindrome (6485665846).

The spelling of 1055420345 in words is "one billion, fifty-five million, four hundred twenty thousand, three hundred forty-five".