235552421 has 8 divisors (see below), whose sum is σ = 259859544. Its totient is φ = 212129280.

The previous prime is 235552417. The next prime is 235552439. The reversal of 235552421 is 124255532.

235552421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1890625 + 233661796 = 1375^2 + 15286^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 235552421 - 2² = 235552417 is a prime.

It is a super-2 number, since 2×235552421² = 110969886077922482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235552411) 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, 220436 + ... + 221501.

It is an arithmetic number, because the mean of its divisors is an integer number (32482443).

Almost surely, 2^235552421 is an apocalyptic number.

It is an amenable number.

235552421 is a deficient number, since it is larger than the sum of its proper divisors (24307123).

235552421 is a wasteful number, since it uses less digits than its factorization.

235552421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441991.

The product of its digits is 12000, while the sum is 29.

The square root of 235552421 is about 15347.7171266609. The cubic root of 235552421 is about 617.5837460109.

The spelling of 235552421 in words is "two hundred thirty-five million, five hundred fifty-two thousand, four hundred twenty-one".