53858249217 has 20 divisors (see below), whose sum is σ = 80751830016. Its totient is φ = 35772992280.

The previous prime is 53858249201. The next prime is 53858249231. The reversal of 53858249217 is 71294285835.

53858249217 is a `hidden beast` number, since 5 + 3 + 8 + 582 + 49 + 2 + 17 = 666.

It is not a de Polignac number, because 53858249217 - 2⁴ = 53858249201 is a prime.

It is a super-2 number, since 2×53858249217² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (53858244217) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1204833 + ... + 1248734.

Almost surely, 2^53858249217 is an apocalyptic number.

It is an amenable number.

53858249217 is a deficient number, since it is larger than the sum of its proper divisors (26893580799).

53858249217 is a wasteful number, since it uses less digits than its factorization.

53858249217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453850 (or 2453841 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 54.

The spelling of 53858249217 in words is "fifty-three billion, eight hundred fifty-eight million, two hundred forty-nine thousand, two hundred seventeen".