256101377 has 4 divisors (see below), whose sum is σ = 292687296. Its totient is φ = 219515460.

The previous prime is 256101371. The next prime is 256101409. The reversal of 256101377 is 773101652.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 256101377 - 2⁸ = 256101121 is a prime.

It is a super-2 number, since 2×256101377² = 131175830602592258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256101371) 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, 18292949 + ... + 18292962.

It is an arithmetic number, because the mean of its divisors is an integer number (73171824).

Almost surely, 2^256101377 is an apocalyptic number.

It is an amenable number.

256101377 is a deficient number, since it is larger than the sum of its proper divisors (36585919).

256101377 is an equidigital number, since it uses as much as digits as its factorization.

256101377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36585918.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 256101377 is about 16003.1677176739. The cubic root of 256101377 is about 635.0442253283.

The spelling of 256101377 in words is "two hundred fifty-six million, one hundred one thousand, three hundred seventy-seven".