252651603 has 24 divisors (see below), whose sum is σ = 359209648. Its totient is φ = 157925376.

The previous prime is 252651599. The next prime is 252651647. The reversal of 252651603 is 306156252.

252651603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 252651603 - 2² = 252651599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252651653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 375075 + ... + 375747.

Almost surely, 2^252651603 is an apocalyptic number.

252651603 is a deficient number, since it is larger than the sum of its proper divisors (106558045).

252651603 is a wasteful number, since it uses less digits than its factorization.

252651603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 252651603 is about 15895.0181818078. The cubic root of 252651603 is about 632.1799037526.

The spelling of 252651603 in words is "two hundred fifty-two million, six hundred fifty-one thousand, six hundred three".