57013501 has 2 divisors, whose sum is σ = 57013502. Its totient is φ = 57013500.

The previous prime is 57013499. The next prime is 57013513. The reversal of 57013501 is 10531075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54908100 + 2105401 = 7410^2 + 1451^2 .

It is a cyclic number.

It is not a de Polignac number, because 57013501 - 2¹ = 57013499 is a prime.

Together with 57013499, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57011501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28506750 + 28506751.

It is an arithmetic number, because the mean of its divisors is an integer number (28506751).

Almost surely, 2^57013501 is an apocalyptic number.

57013501 is the 4776-th centered pentagonal number.

It is an amenable number.

57013501 is a deficient number, since it is larger than the sum of its proper divisors (1).

57013501 is an equidigital number, since it uses as much as digits as its factorization.

57013501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 525, while the sum is 22.

The square root of 57013501 is about 7550.7285078991. The cubic root of 57013501 is about 384.8804958832.

Adding to 57013501 its reverse (10531075), we get a palindrome (67544576).

The spelling of 57013501 in words is "fifty-seven million, thirteen thousand, five hundred one".