57651851 has 2 divisors, whose sum is σ = 57651852. Its totient is φ = 57651850.

The previous prime is 57651817. The next prime is 57651877. The reversal of 57651851 is 15815675.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57651851 - 2¹⁸ = 57389707 is a prime.

It is not a weakly prime, because it can be changed into another prime (57654851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28825925 + 28825926.

It is an arithmetic number, because the mean of its divisors is an integer number (28825926).

Almost surely, 2^57651851 is an apocalyptic number.

57651851 is a deficient number, since it is larger than the sum of its proper divisors (1).

57651851 is an equidigital number, since it uses as much as digits as its factorization.

57651851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42000, while the sum is 38.

The square root of 57651851 is about 7592.8816005519. The cubic root of 57651851 is about 386.3116023976.

The spelling of 57651851 in words is "fifty-seven million, six hundred fifty-one thousand, eight hundred fifty-one".