253541143642 has 32 divisors (see below), whose sum is σ = 408868891200. Its totient is φ = 117562762368.

The previous prime is 253541143637. The next prime is 253541143649. The reversal of 253541143642 is 246341145352.

It is a super-2 number, since 2×253541143642² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 253541143595 and 253541143604.

It is not an unprimeable number, because it can be changed into a prime (253541143649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24963 + ... + 712534.

It is an arithmetic number, because the mean of its divisors is an integer number (12777152850).

Almost surely, 2^253541143642 is an apocalyptic number.

253541143642 is a deficient number, since it is larger than the sum of its proper divisors (155327747558).

253541143642 is a wasteful number, since it uses less digits than its factorization.

253541143642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737710.

The product of its digits is 345600, while the sum is 40.

Adding to 253541143642 its reverse (246341145352), we get a palindrome (499882288994).

The spelling of 253541143642 in words is "two hundred fifty-three billion, five hundred forty-one million, one hundred forty-three thousand, six hundred forty-two".