1235125555 has 8 divisors (see below), whose sum is σ = 1492970112. Its totient is φ = 980887488.

The previous prime is 1235125523. The next prime is 1235125607. The reversal of 1235125555 is 5555215321.

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 1235125555 - 2⁵ = 1235125523 is a prime.

It is a super-2 number, since 2×1235125555² = 3051070273228116050, which contains 22 as substring.

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 1235125555.

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, 900867 + ... + 902236.

It is an arithmetic number, because the mean of its divisors is an integer number (186621264).

Almost surely, 2^1235125555 is an apocalyptic number.

1235125555 is a deficient number, since it is larger than the sum of its proper divisors (257844557).

1235125555 is a wasteful number, since it uses less digits than its factorization.

1235125555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803245.

The product of its digits is 37500, while the sum is 34.

The square root of 1235125555 is about 35144.3531025967. The cubic root of 1235125555 is about 1072.9274812186.

The spelling of 1235125555 in words is "one billion, two hundred thirty-five million, one hundred twenty-five thousand, five hundred fifty-five".