57545401 has 2 divisors, whose sum is σ = 57545402. Its totient is φ = 57545400.

The previous prime is 57545399. The next prime is 57545407. The reversal of 57545401 is 10454575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52186176 + 5359225 = 7224^2 + 2315^2 .

It is a cyclic number.

It is not a de Polignac number, because 57545401 - 2¹ = 57545399 is a prime.

It is a super-2 number, since 2×57545401² = 6622946352501602, which contains 22 as substring.

Together with 57545399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (57545407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28772700 + 28772701.

It is an arithmetic number, because the mean of its divisors is an integer number (28772701).

Almost surely, 2^57545401 is an apocalyptic number.

It is an amenable number.

57545401 is a deficient number, since it is larger than the sum of its proper divisors (1).

57545401 is an equidigital number, since it uses as much as digits as its factorization.

57545401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14000, while the sum is 31.

The square root of 57545401 is about 7585.8685066379. The cubic root of 57545401 is about 386.0736903705.

Adding to 57545401 its reverse (10454575), we get a palindrome (67999976).

The spelling of 57545401 in words is "fifty-seven million, five hundred forty-five thousand, four hundred one".