57491896 has 96 divisors (see below), whose sum is σ = 139536000. Its totient is φ = 21954240.

The previous prime is 57491867. The next prime is 57491897. The reversal of 57491896 is 69819475.

57491896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57491897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288805 + ... + 289003.

It is an arithmetic number, because the mean of its divisors is an integer number (1453500).

Almost surely, 2^57491896 is an apocalyptic number.

57491896 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

57491896 is the 4378-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57491896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69768000).

57491896 is an abundant number, since it is smaller than the sum of its proper divisors (82044104).

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

57491896 is a wasteful number, since it uses less digits than its factorization.

57491896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 286 counting only the distinct ones).

The product of its digits is 544320, while the sum is 49.

The square root of 57491896 is about 7582.3410632865. The cubic root of 57491896 is about 385.9539977573.

The spelling of 57491896 in words is "fifty-seven million, four hundred ninety-one thousand, eight hundred ninety-six".