1253502402 has 8 divisors (see below), whose sum is σ = 2507004816. Its totient is φ = 417834132.

The previous prime is 1253502379. The next prime is 1253502421. The reversal of 1253502402 is 2042053521.

It is a sphenic number, since it is the product of 3 distinct primes.

1253502402 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104458528 + ... + 104458539.

It is an arithmetic number, because the mean of its divisors is an integer number (313375602).

Almost surely, 2^1253502402 is an apocalyptic number.

1253502402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1253502402 is a wasteful number, since it uses less digits than its factorization.

1253502402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208917072.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1253502402 is about 35404.8358561369. The cubic root of 1253502402 is about 1078.2224996605. Note that the first 3 decimals are identical.

Adding to 1253502402 its reverse (2042053521), we get a palindrome (3295555923).

The spelling of 1253502402 in words is "one billion, two hundred fifty-three million, five hundred two thousand, four hundred two".