57138254 has 4 divisors (see below), whose sum is σ = 85707384. Its totient is φ = 28569126.

The previous prime is 57138227. The next prime is 57138269. The reversal of 57138254 is 45283175.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14284562 + ... + 14284565.

It is an arithmetic number, because the mean of its divisors is an integer number (21426846).

Almost surely, 2^57138254 is an apocalyptic number.

57138254 is a deficient number, since it is larger than the sum of its proper divisors (28569130).

57138254 is a wasteful number, since it uses less digits than its factorization.

57138254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28569129.

The product of its digits is 33600, while the sum is 35.

The square root of 57138254 is about 7558.9849847714. The cubic root of 57138254 is about 385.1610143402.

The spelling of 57138254 in words is "fifty-seven million, one hundred thirty-eight thousand, two hundred fifty-four".