57277248 has 112 divisors (see below), whose sum is σ = 182392320. Its totient is φ = 15496704.

The previous prime is 57277237. The next prime is 57277249. The reversal of 57277248 is 84277275.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57277249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24415 + ... + 26657.

Almost surely, 2^57277248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57277248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91196160).

57277248 is an abundant number, since it is smaller than the sum of its proper divisors (125115072).

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

57277248 is a wasteful number, since it uses less digits than its factorization.

57277248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2284 (or 2274 counting only the distinct ones).

The product of its digits is 219520, while the sum is 42.

The square root of 57277248 is about 7568.1733595366. The cubic root of 57277248 is about 385.4730745055.

The spelling of 57277248 in words is "fifty-seven million, two hundred seventy-seven thousand, two hundred forty-eight".