253542997 has 2 divisors, whose sum is σ = 253542998. Its totient is φ = 253542996.

The previous prime is 253542983. The next prime is 253543009. The reversal of 253542997 is 799245352.

253542997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200675556 + 52867441 = 14166^2 + 7271^2 .

It is a cyclic number.

It is not a de Polignac number, because 253542997 - 2¹⁹ = 253018709 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 (253542197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126771498 + 126771499.

It is an arithmetic number, because the mean of its divisors is an integer number (126771499).

Almost surely, 2^253542997 is an apocalyptic number.

It is an amenable number.

253542997 is a deficient number, since it is larger than the sum of its proper divisors (1).

253542997 is an equidigital number, since it uses as much as digits as its factorization.

253542997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 46.

The square root of 253542997 is about 15923.0335363586. The cubic root of 253542997 is about 632.9225073118.

The spelling of 253542997 in words is "two hundred fifty-three million, five hundred forty-two thousand, nine hundred ninety-seven".