57212501 has 2 divisors, whose sum is σ = 57212502. Its totient is φ = 57212500.

The previous prime is 57212479. The next prime is 57212513. The reversal of 57212501 is 10521275.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39564100 + 17648401 = 6290^2 + 4201^2 .

It is a cyclic number.

It is not a de Polignac number, because 57212501 - 2⁶ = 57212437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57212521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28606250 + 28606251.

It is an arithmetic number, because the mean of its divisors is an integer number (28606251).

Almost surely, 2^57212501 is an apocalyptic number.

It is an amenable number.

57212501 is a deficient number, since it is larger than the sum of its proper divisors (1).

57212501 is an equidigital number, since it uses as much as digits as its factorization.

57212501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 57212501 is about 7563.8945656322. The cubic root of 57212501 is about 385.3277716944.

Adding to 57212501 its reverse (10521275), we get a palindrome (67733776).

The spelling of 57212501 in words is "fifty-seven million, two hundred twelve thousand, five hundred one".