2150253421 has 2 divisors, whose sum is σ = 2150253422. Its totient is φ = 2150253420.

The previous prime is 2150253379. The next prime is 2150253433. The reversal of 2150253421 is 1243520512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1197852100 + 952401321 = 34610^2 + 30861^2 .

It is a cyclic number.

It is not a de Polignac number, because 2150253421 - 2⁷ = 2150253293 is a prime.

It is a super-5 number, since 5×2150253421⁵ (a number of 48 digits) contains 55555 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2150253451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1075126710 + 1075126711.

It is an arithmetic number, because the mean of its divisors is an integer number (1075126711).

Almost surely, 2^2150253421 is an apocalyptic number.

It is an amenable number.

2150253421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2150253421 is an equidigital number, since it uses as much as digits as its factorization.

2150253421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 2150253421 is about 46370.8251058788. The cubic root of 2150253421 is about 1290.7135889264.

Adding to 2150253421 its reverse (1243520512), we get a palindrome (3393773933).

The spelling of 2150253421 in words is "two billion, one hundred fifty million, two hundred fifty-three thousand, four hundred twenty-one".