253220657353420 has 24 divisors (see below), whose sum is σ = 531773949980448. Its totient is φ = 101286249696000.

The previous prime is 253220657353399. The next prime is 253220657353453. The reversal of 253220657353420 is 24353756022352.

It is a happy number.

253220657353420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124796256 + ... + 126809095.

It is an arithmetic number, because the mean of its divisors is an integer number (22157247915852).

Almost surely, 2^{253220657353420} is an apocalyptic number.

253220657353420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253220657353420 is an abundant number, since it is smaller than the sum of its proper divisors (278553292627028).

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

253220657353420 is a wasteful number, since it uses less digits than its factorization.

253220657353420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251655681 (or 251655679 counting only the distinct ones).

The product of its (nonzero) digits is 9072000, while the sum is 49.

The spelling of 253220657353420 in words is "two hundred fifty-three trillion, two hundred twenty billion, six hundred fifty-seven million, three hundred fifty-three thousand, four hundred twenty".