53361247 has 4 divisors (see below), whose sum is σ = 55201320. Its totient is φ = 51521176.

The previous prime is 53361241. The next prime is 53361251. The reversal of 53361247 is 74216335.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53361247 - 2¹¹ = 53359199 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53361241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 919993 + ... + 920050.

It is an arithmetic number, because the mean of its divisors is an integer number (13800330).

Almost surely, 2^53361247 is an apocalyptic number.

53361247 is a deficient number, since it is larger than the sum of its proper divisors (1840073).

53361247 is a wasteful number, since it uses less digits than its factorization.

53361247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840072.

The product of its digits is 15120, while the sum is 31.

The square root of 53361247 is about 7304.8783015188. The cubic root of 53361247 is about 376.4800695141.

The spelling of 53361247 in words is "fifty-three million, three hundred sixty-one thousand, two hundred forty-seven".