257616054 has 72 divisors (see below), whose sum is σ = 597903696. Its totient is φ = 79992000.

The previous prime is 257616049. The next prime is 257616061. The reversal of 257616054 is 450616752.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2550604 + ... + 2550704.

It is an arithmetic number, because the mean of its divisors is an integer number (8304218).

Almost surely, 2^257616054 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 257616054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298951848).

257616054 is an abundant number, since it is smaller than the sum of its proper divisors (340287642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257616054 is a wasteful number, since it uses less digits than its factorization.

257616054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 257616054 is about 16050.4222374366. The cubic root of 257616054 is about 636.2937263176.

The spelling of 257616054 in words is "two hundred fifty-seven million, six hundred sixteen thousand, fifty-four".