253010101 has 4 divisors (see below), whose sum is σ = 253174572. Its totient is φ = 252845632.

The previous prime is 253010089. The next prime is 253010117. The reversal of 253010101 is 101010352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 138627076 + 114383025 = 11774^2 + 10695^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-253010101 is a prime.

It is a super-2 number, since 2×253010101² = 128028222416060402, which contains 22 as substring.

It is a Duffinian number.

253010101 is a modest number, since divided by 10101 gives 253 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253010171) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 79906 + ... + 83011.

It is an arithmetic number, because the mean of its divisors is an integer number (63293643).

Almost surely, 2^253010101 is an apocalyptic number.

It is an amenable number.

253010101 is a deficient number, since it is larger than the sum of its proper divisors (164471).

253010101 is a wasteful number, since it uses less digits than its factorization.

253010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164470.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 253010101 is about 15906.2912396322. The cubic root of 253010101 is about 632.4787713352.

Adding to 253010101 its reverse (101010352), we get a palindrome (354020453).

The spelling of 253010101 in words is "two hundred fifty-three million, ten thousand, one hundred one".