253553429 has 2 divisors, whose sum is σ = 253553430. Its totient is φ = 253553428.

The previous prime is 253553411. The next prime is 253553437. The reversal of 253553429 is 924355352.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190716100 + 62837329 = 13810^2 + 7927^2 .

It is a cyclic number.

It is not a de Polignac number, because 253553429 - 2¹² = 253549333 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 253553392 and 253553401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (253558429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126776714 + 126776715.

It is an arithmetic number, because the mean of its divisors is an integer number (126776715).

Almost surely, 2^253553429 is an apocalyptic number.

It is an amenable number.

253553429 is a deficient number, since it is larger than the sum of its proper divisors (1).

253553429 is an equidigital number, since it uses as much as digits as its factorization.

253553429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 38.

The square root of 253553429 is about 15923.3611087609. The cubic root of 253553429 is about 632.9311877028.

The spelling of 253553429 in words is "two hundred fifty-three million, five hundred fifty-three thousand, four hundred twenty-nine".