1105420525 has 24 divisors (see below), whose sum is σ = 1497904128. Its totient is φ = 802560000.

The previous prime is 1105420517. The next prime is 1105420553. The reversal of 1105420525 is 5250245011.

It is not a de Polignac number, because 1105420525 - 2³ = 1105420517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1105420525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173140 + ... + 179410.

It is an arithmetic number, because the mean of its divisors is an integer number (62412672).

Almost surely, 2^1105420525 is an apocalyptic number.

It is an amenable number.

1105420525 is a deficient number, since it is larger than the sum of its proper divisors (392483603).

1105420525 is a wasteful number, since it uses less digits than its factorization.

1105420525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6933 (or 6928 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 1105420525 is about 33247.8649690473. The cubic root of 1105420525 is about 1033.9729439948.

Adding to 1105420525 its reverse (5250245011), we get a palindrome (6355665536).

The spelling of 1105420525 in words is "one billion, one hundred five million, four hundred twenty thousand, five hundred twenty-five".