1255315542 has 16 divisors (see below), whose sum is σ = 2703756720. Its totient is φ = 386250912.

The previous prime is 1255315517. The next prime is 1255315549. The reversal of 1255315542 is 2455135521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255315549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8046817 + ... + 8046972.

It is an arithmetic number, because the mean of its divisors is an integer number (168984795).

Almost surely, 2^1255315542 is an apocalyptic number.

1255315542 is an abundant number, since it is smaller than the sum of its proper divisors (1448441178).

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

1255315542 is a wasteful number, since it uses less digits than its factorization.

1255315542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16093807.

The product of its digits is 30000, while the sum is 33.

The square root of 1255315542 is about 35430.4324275050. The cubic root of 1255315542 is about 1078.7421174670.

The spelling of 1255315542 in words is "one billion, two hundred fifty-five million, three hundred fifteen thousand, five hundred forty-two".