2150550257 has 4 divisors (see below), whose sum is σ = 2151169776. Its totient is φ = 2149930740.

The previous prime is 2150550251. The next prime is 2150550293. The reversal of 2150550257 is 7520550512.

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 2150550257 - 2¹⁸ = 2150288113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2150550251) 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, 304523 + ... + 311504.

It is an arithmetic number, because the mean of its divisors is an integer number (537792444).

Almost surely, 2^2150550257 is an apocalyptic number.

It is an amenable number.

2150550257 is a deficient number, since it is larger than the sum of its proper divisors (619519).

2150550257 is an equidigital number, since it uses as much as digits as its factorization.

2150550257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619518.

The product of its (nonzero) digits is 17500, while the sum is 32.

The square root of 2150550257 is about 46374.0256717055. The cubic root of 2150550257 is about 1290.7729792331.

The spelling of 2150550257 in words is "two billion, one hundred fifty million, five hundred fifty thousand, two hundred fifty-seven".