1255642514 has 16 divisors (see below), whose sum is σ = 2157150528. Its totient is φ = 536977392.

The previous prime is 1255642501. The next prime is 1255642517. The reversal of 1255642514 is 4152465521.

It is not an unprimeable number, because it can be changed into a prime (1255642517) 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, 89489 + ... + 102564.

It is an arithmetic number, because the mean of its divisors is an integer number (134821908).

Almost surely, 2^1255642514 is an apocalyptic number.

1255642514 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1255642514 is a deficient number, since it is larger than the sum of its proper divisors (901508014).

1255642514 is a wasteful number, since it uses less digits than its factorization.

1255642514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192529.

The product of its digits is 48000, while the sum is 35.

The square root of 1255642514 is about 35435.0464088873. The cubic root of 1255642514 is about 1078.8357693115.

The spelling of 1255642514 in words is "one billion, two hundred fifty-five million, six hundred forty-two thousand, five hundred fourteen".