251606483 has 4 divisors (see below), whose sum is σ = 251731920. Its totient is φ = 251481048.

The previous prime is 251606461. The next prime is 251606497. The reversal of 251606483 is 384606152.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 251606483 - 2⁶ = 251606419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (251606413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59660 + ... + 63737.

It is an arithmetic number, because the mean of its divisors is an integer number (62932980).

Almost surely, 2^251606483 is an apocalyptic number.

251606483 is a deficient number, since it is larger than the sum of its proper divisors (125437).

251606483 is a wasteful number, since it uses less digits than its factorization.

251606483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125436.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 251606483 is about 15862.1084033618. The cubic root of 251606483 is about 631.3070060860.

The spelling of 251606483 in words is "two hundred fifty-one million, six hundred six thousand, four hundred eighty-three".