1255413501 has 24 divisors (see below), whose sum is σ = 1921438584. Its totient is φ = 787138560.

The previous prime is 1255413499. The next prime is 1255413503. The reversal of 1255413501 is 1053145521.

It is an interprime number because it is at equal distance from previous prime (1255413499) and next prime (1255413503).

It can be written as a sum of positive squares in 4 ways, for example, as 88849476 + 1166564025 = 9426^2 + 34155^2 .

It is not a de Polignac number, because 1255413501 - 2¹ = 1255413499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255413503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 328735 + ... + 332531.

It is an arithmetic number, because the mean of its divisors is an integer number (80059941).

Almost surely, 2^1255413501 is an apocalyptic number.

It is an amenable number.

1255413501 is a deficient number, since it is larger than the sum of its proper divisors (666025083).

1255413501 is a wasteful number, since it uses less digits than its factorization.

1255413501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5981 (or 5978 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1255413501 is about 35431.8148138082. The cubic root of 1255413501 is about 1078.7701767469.

The spelling of 1255413501 in words is "one billion, two hundred fifty-five million, four hundred thirteen thousand, five hundred one".