2251532401 has 2 divisors, whose sum is σ = 2251532402. Its totient is φ = 2251532400.

The previous prime is 2251532383. The next prime is 2251532407. The reversal of 2251532401 is 1042351522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1570061376 + 681471025 = 39624^2 + 26105^2 .

It is a cyclic number.

It is not a de Polignac number, because 2251532401 - 2¹⁵ = 2251499633 is a prime.

It is not a weakly prime, because it can be changed into another prime (2251532407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125766200 + 1125766201.

It is an arithmetic number, because the mean of its divisors is an integer number (1125766201).

Almost surely, 2^2251532401 is an apocalyptic number.

It is an amenable number.

2251532401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2251532401 is an equidigital number, since it uses as much as digits as its factorization.

2251532401 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 2251532401 is about 47450.3150779845. The cubic root of 2251532401 is about 1310.6681130563.

Adding to 2251532401 its reverse (1042351522), we get a palindrome (3293883923).

The spelling of 2251532401 in words is "two billion, two hundred fifty-one million, five hundred thirty-two thousand, four hundred one".