57219540 has 48 divisors (see below), whose sum is σ = 183103872. Its totient is φ = 13078656.

The previous prime is 57219529. The next prime is 57219551. The reversal of 57219540 is 4591275.

57219540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57219529) and next prime (57219551).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 67699 + ... + 68538.

It is an arithmetic number, because the mean of its divisors is an integer number (3814664).

Almost surely, 2^57219540 is an apocalyptic number.

It is an amenable number.

57219540 is an abundant number, since it is smaller than the sum of its proper divisors (125884332).

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

57219540 is a wasteful number, since it uses less digits than its factorization.

57219540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136256 (or 136254 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 57219540 is about 7564.3598539467. The cubic root of 57219540 is about 385.3435736660.

The spelling of 57219540 in words is "fifty-seven million, two hundred nineteen thousand, five hundred forty".