253532402 has 4 divisors (see below), whose sum is σ = 380298606. Its totient is φ = 126766200.

The previous prime is 253532393. The next prime is 253532417. The reversal of 253532402 is 204235352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 157276681 + 96255721 = 12541^2 + 9811^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63383099 + ... + 63383102.

Almost surely, 2^253532402 is an apocalyptic number.

253532402 is a deficient number, since it is larger than the sum of its proper divisors (126766204).

253532402 is a wasteful number, since it uses less digits than its factorization.

253532402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126766203.

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 253532402 is about 15922.7008387396. The cubic root of 253532402 is about 632.9136910460.

Adding to 253532402 its reverse (204235352), we get a palindrome (457767754).

The spelling of 253532402 in words is "two hundred fifty-three million, five hundred thirty-two thousand, four hundred two".