53347202987 has 6 divisors (see below), whose sum is σ = 57766498092. Its totient is φ = 49243571832.

The previous prime is 53347202983. The next prime is 53347203001. The reversal of 53347202987 is 78920274335.

It is a happy number.

It is not a de Polignac number, because 53347202987 - 2² = 53347202983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53347202983) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 157831793 + ... + 157832130.

It is an arithmetic number, because the mean of its divisors is an integer number (9627749682).

Almost surely, 2^53347202987 is an apocalyptic number.

53347202987 is a deficient number, since it is larger than the sum of its proper divisors (4419295105).

53347202987 is a wasteful number, since it uses less digits than its factorization.

53347202987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315663949 (or 315663936 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 53347202987 in words is "fifty-three billion, three hundred forty-seven million, two hundred two thousand, nine hundred eighty-seven".