2251503465 has 64 divisors (see below), whose sum is σ = 3882318336. Its totient is φ = 1111283712.

The previous prime is 2251503461. The next prime is 2251503467. The reversal of 2251503465 is 5643051522.

2251503465 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2251503465 - 2² = 2251503461 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2251503461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2973867 + ... + 2974623.

It is an arithmetic number, because the mean of its divisors is an integer number (60661224).

Almost surely, 2^2251503465 is an apocalyptic number.

It is an amenable number.

2251503465 is a deficient number, since it is larger than the sum of its proper divisors (1630814871).

2251503465 is a wasteful number, since it uses less digits than its factorization.

2251503465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 2251503465 is about 47450.0101685974. The cubic root of 2251503465 is about 1310.6624982648.

Adding to 2251503465 its reverse (5643051522), we get a palindrome (7894554987).

It can be divided in two parts, 225150 and 3465, that multiplied together give a triangular number (780144750 = T₃₉₅₀₀).

The spelling of 2251503465 in words is "two billion, two hundred fifty-one million, five hundred three thousand, four hundred sixty-five".