253660002 has 16 divisors (see below), whose sum is σ = 507922272. Its totient is φ = 84452960.

The previous prime is 253659983. The next prime is 253660003. The reversal of 253660002 is 200066352.

It is a super-2 number, since 2×253660002² = 128686793229280008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (253660003) 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, 19524 + ... + 29807.

It is an arithmetic number, because the mean of its divisors is an integer number (31745142).

Almost surely, 2^253660002 is an apocalyptic number.

253660002 is an abundant number, since it is smaller than the sum of its proper divisors (254262270).

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

253660002 is a wasteful number, since it uses less digits than its factorization.

253660002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50193.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 253660002 is about 15926.7071926372. The cubic root of 253660002 is about 633.0198526800.

The spelling of 253660002 in words is "two hundred fifty-three million, six hundred sixty thousand, two".