57405161 has 4 divisors (see below), whose sum is σ = 62623824. Its totient is φ = 52186500.

The previous prime is 57405157. The next prime is 57405163. The reversal of 57405161 is 16150475.

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.

It is a cyclic number.

It is not a de Polignac number, because 57405161 - 2² = 57405157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57405163) 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, 2609315 + ... + 2609336.

It is an arithmetic number, because the mean of its divisors is an integer number (15655956).

Almost surely, 2^57405161 is an apocalyptic number.

It is an amenable number.

57405161 is a deficient number, since it is larger than the sum of its proper divisors (5218663).

57405161 is a wasteful number, since it uses less digits than its factorization.

57405161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5218662.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 57405161 is about 7576.6193648619. The cubic root of 57405161 is about 385.7598105715.

It can be divided in two parts, 5740 and 5161, that added together give a palindrome (10901).

The spelling of 57405161 in words is "fifty-seven million, four hundred five thousand, one hundred sixty-one".