253450857446 has 16 divisors (see below), whose sum is σ = 383958338400. Its totient is φ = 125467187328.

The previous prime is 253450857433. The next prime is 253450857449. The reversal of 253450857446 is 644758054352.

It is a super-2 number, since 2×253450857446² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253450857449) 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, 402461 + ... + 817848.

It is an arithmetic number, because the mean of its divisors is an integer number (23997396150).

Almost surely, 2^253450857446 is an apocalyptic number.

253450857446 is a deficient number, since it is larger than the sum of its proper divisors (130507480954).

253450857446 is a wasteful number, since it uses less digits than its factorization.

253450857446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221343.

The product of its (nonzero) digits is 16128000, while the sum is 53.

The spelling of 253450857446 in words is "two hundred fifty-three billion, four hundred fifty million, eight hundred fifty-seven thousand, four hundred forty-six".