53661052239 has 8 divisors (see below), whose sum is σ = 71792262192. Its totient is φ = 35651938560.

The previous prime is 53661052201. The next prime is 53661052253. The reversal of 53661052239 is 93225016635.

It is a happy number.

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

It is not a de Polignac number, because 53661052239 - 2¹⁵ = 53661019471 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53661052239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53661052259) 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, 30523042 + ... + 30524799.

It is an arithmetic number, because the mean of its divisors is an integer number (8974032774).

Almost surely, 2^53661052239 is an apocalyptic number.

53661052239 is a deficient number, since it is larger than the sum of its proper divisors (18131209953).

53661052239 is a wasteful number, since it uses less digits than its factorization.

53661052239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61048137.

The product of its (nonzero) digits is 291600, while the sum is 42.

The spelling of 53661052239 in words is "fifty-three billion, six hundred sixty-one million, fifty-two thousand, two hundred thirty-nine".