2251523401 has 16 divisors (see below), whose sum is σ = 2414924928. Its totient is φ = 2091744000.

The previous prime is 2251523303. The next prime is 2251523419. The reversal of 2251523401 is 1043251522.

It is a cyclic number.

It is not a de Polignac number, because 2251523401 - 2¹¹ = 2251521353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251523101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415731 + ... + 421111.

It is an arithmetic number, because the mean of its divisors is an integer number (150932808).

Almost surely, 2^2251523401 is an apocalyptic number.

It is an amenable number.

2251523401 is a deficient number, since it is larger than the sum of its proper divisors (163401527).

2251523401 is a wasteful number, since it uses less digits than its factorization.

2251523401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5712.

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

The square root of 2251523401 is about 47450.2202418492. The cubic root of 2251523401 is about 1310.6663666859. Note that the first 3 decimals are identical.

Adding to 2251523401 its reverse (1043251522), we get a palindrome (3294774923).

The spelling of 2251523401 in words is "two billion, two hundred fifty-one million, five hundred twenty-three thousand, four hundred one".