256150501 has 8 divisors (see below), whose sum is σ = 257413464. Its totient is φ = 254891520.

The previous prime is 256150483. The next prime is 256150507. The reversal of 256150501 is 105051652.

It can be written as a sum of positive squares in 4 ways, for example, as 1716100 + 254434401 = 1310^2 + 15951^2 .

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-256150501 is a prime.

It is a super-2 number, since 2×256150501² = 131226158325102002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256150507) 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, 272905 + ... + 273841.

It is an arithmetic number, because the mean of its divisors is an integer number (32176683).

Almost surely, 2^256150501 is an apocalyptic number.

It is an amenable number.

256150501 is a deficient number, since it is larger than the sum of its proper divisors (1262963).

256150501 is an equidigital number, since it uses as much as digits as its factorization.

256150501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 256150501 is about 16004.7024652132. The cubic root of 256150501 is about 635.0848263310.

The spelling of 256150501 in words is "two hundred fifty-six million, one hundred fifty thousand, five hundred one".