53858861 has 4 divisors (see below), whose sum is σ = 61552992. Its totient is φ = 46164732.

The previous prime is 53858843. The next prime is 53858891. The reversal of 53858861 is 16885835.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16885835 = 5 ⋅3377167.

It is a cyclic number.

It is not a de Polignac number, because 53858861 - 2⁶ = 53858797 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 (53858891) 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, 3847055 + ... + 3847068.

It is an arithmetic number, because the mean of its divisors is an integer number (15388248).

Almost surely, 2^53858861 is an apocalyptic number.

It is an amenable number.

53858861 is a deficient number, since it is larger than the sum of its proper divisors (7694131).

53858861 is an equidigital number, since it uses as much as digits as its factorization.

53858861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7694130.

The product of its digits is 230400, while the sum is 44.

The square root of 53858861 is about 7338.8596525618. The cubic root of 53858861 is about 377.6467239542.

The spelling of 53858861 in words is "fifty-three million, eight hundred fifty-eight thousand, eight hundred sixty-one".