52061353221 has 32 divisors (see below), whose sum is σ = 72387883008. Its totient is φ = 33244686720.

The previous prime is 52061353219. The next prime is 52061353247. The reversal of 52061353221 is 12235316025.

It is not a de Polignac number, because 52061353221 - 2¹ = 52061353219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52061353261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19771321 + ... + 19773953.

It is an arithmetic number, because the mean of its divisors is an integer number (2262121344).

Almost surely, 2^52061353221 is an apocalyptic number.

It is an amenable number.

52061353221 is a deficient number, since it is larger than the sum of its proper divisors (20326529787).

52061353221 is a wasteful number, since it uses less digits than its factorization.

52061353221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4761.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 52061353221 its reverse (12235316025), we get a palindrome (64296669246).

The spelling of 52061353221 in words is "fifty-two billion, sixty-one million, three hundred fifty-three thousand, two hundred twenty-one".