53420747247 has 24 divisors (see below), whose sum is σ = 88317735584. Its totient is φ = 30480758784.

The previous prime is 53420747239. The next prime is 53420747273. The reversal of 53420747247 is 74274702435.

53420747247 is a `hidden beast` number, since 53 + 420 + 74 + 72 + 47 = 666.

It is not a de Polignac number, because 53420747247 - 2³ = 53420747239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53420747207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 587578 + ... + 672375.

Almost surely, 2^53420747247 is an apocalyptic number.

53420747247 is a deficient number, since it is larger than the sum of its proper divisors (34896988337).

53420747247 is a wasteful number, since it uses less digits than its factorization.

53420747247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260639 (or 1260636 counting only the distinct ones).

The product of its (nonzero) digits is 1317120, while the sum is 45.

The spelling of 53420747247 in words is "fifty-three billion, four hundred twenty million, seven hundred forty-seven thousand, two hundred forty-seven".