253953507844 has 9 divisors (see below), whose sum is σ = 444420402517. Its totient is φ = 126976249984.

The previous prime is 253953507839. The next prime is 253953507883. The reversal of 253953507844 is 448705359352.

The square root of 253953507844 is 503938.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 105081002244 + 148872505600 = 324162^2 + 385840^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 881892 + ... + 1133860.

Almost surely, 2^253953507844 is an apocalyptic number.

253953507844 is the 503938-th square number.

It is an amenable number.

253953507844 is a deficient number, since it is larger than the sum of its proper divisors (190466894673).

253953507844 is an frugal number, since it uses more digits than its factorization.

253953507844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503942 (or 251971 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 55.

The spelling of 253953507844 in words is "two hundred fifty-three billion, nine hundred fifty-three million, five hundred seven thousand, eight hundred forty-four".