1555125042 has 32 divisors (see below), whose sum is σ = 3140145792. Its totient is φ = 513415424.

The previous prime is 1555124983. The next prime is 1555125043. The reversal of 1555125042 is 2405215551.

It is not an unprimeable number, because it can be changed into a prime (1555125043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290938 + ... + 296234.

It is an arithmetic number, because the mean of its divisors is an integer number (98129556).

Almost surely, 2^1555125042 is an apocalyptic number.

1555125042 is an abundant number, since it is smaller than the sum of its proper divisors (1585020750).

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

1555125042 is a wasteful number, since it uses less digits than its factorization.

1555125042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5762.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 1555125042 is about 39435.0737542102. The cubic root of 1555125042 is about 1158.5686472479.

The spelling of 1555125042 in words is "one billion, five hundred fifty-five million, one hundred twenty-five thousand, forty-two".