1255650401 has 8 divisors (see below), whose sum is σ = 1282417920. Its totient is φ = 1228996912.

The previous prime is 1255650373. The next prime is 1255650427. The reversal of 1255650401 is 1040565521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255650401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255650491) 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, 6065 + ... + 50478.

It is an arithmetic number, because the mean of its divisors is an integer number (160302240).

Almost surely, 2^1255650401 is an apocalyptic number.

It is an amenable number.

1255650401 is a deficient number, since it is larger than the sum of its proper divisors (26767519).

1255650401 is an equidigital number, since it uses as much as digits as its factorization.

1255650401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57015.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 1255650401 is about 35435.1576968411. The cubic root of 1255650401 is about 1078.8380281179.

The spelling of 1255650401 in words is "one billion, two hundred fifty-five million, six hundred fifty thousand, four hundred one".