250506505 has 8 divisors (see below), whose sum is σ = 310305024. Its totient is φ = 193940400.

The previous prime is 250506499. The next prime is 250506511. The reversal of 250506505 is 505605052.

It is an interprime number because it is at equal distance from previous prime (250506499) and next prime (250506511).

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

It is not a de Polignac number, because 250506505 - 2³ = 250506497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 807931 + ... + 808240.

It is an arithmetic number, because the mean of its divisors is an integer number (38788128).

Almost surely, 2^250506505 is an apocalyptic number.

It is an amenable number.

250506505 is a deficient number, since it is larger than the sum of its proper divisors (59798519).

250506505 is a wasteful number, since it uses less digits than its factorization.

250506505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616207.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 250506505 is about 15827.3972907740. The cubic root of 250506505 is about 630.3856754963.

The spelling of 250506505 in words is "two hundred fifty million, five hundred six thousand, five hundred five".