352020025421 has 16 divisors (see below), whose sum is σ = 382627215360. Its totient is φ = 322627944240.

The previous prime is 352020025387. The next prime is 352020025517. The reversal of 352020025421 is 124520020253.

It is a de Polignac number, because none of the positive numbers 2^k-352020025421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352020025921) 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, 1709030 + ... + 1903896.

It is an arithmetic number, because the mean of its divisors is an integer number (23914200960).

Almost surely, 2^352020025421 is an apocalyptic number.

352020025421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

352020025421 is a deficient number, since it is larger than the sum of its proper divisors (30607189939).

352020025421 is a wasteful number, since it uses less digits than its factorization.

352020025421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197984.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 352020025421 its reverse (124520020253), we get a palindrome (476540045674).

The spelling of 352020025421 in words is "three hundred fifty-two billion, twenty million, twenty-five thousand, four hundred twenty-one".