1253653064 has 32 divisors (see below), whose sum is σ = 2490982200. Its totient is φ = 590446080.

The previous prime is 1253653061. The next prime is 1253653073. The reversal of 1253653064 is 4603563521.

It can be written as a sum of positive squares in 4 ways, for example, as 1046004964 + 207648100 = 32342^2 + 14410^2 .

It is not an unprimeable number, because it can be changed into a prime (1253653061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56387 + ... + 75410.

Almost surely, 2^1253653064 is an apocalyptic number.

It is an amenable number.

1253653064 is a deficient number, since it is larger than the sum of its proper divisors (1237329136).

1253653064 is a wasteful number, since it uses less digits than its factorization.

1253653064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131873 (or 131869 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

The square root of 1253653064 is about 35406.9634959001. The cubic root of 1253653064 is about 1078.2656961341.

The spelling of 1253653064 in words is "one billion, two hundred fifty-three million, six hundred fifty-three thousand, sixty-four".