53623429 has 2 divisors, whose sum is σ = 53623430. Its totient is φ = 53623428.

The previous prime is 53623421. The next prime is 53623433. The reversal of 53623429 is 92432635.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34281025 + 19342404 = 5855^2 + 4398^2 .

It is a cyclic number.

It is not a de Polignac number, because 53623429 - 2³ = 53623421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53623394 and 53623403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53623421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26811714 + 26811715.

It is an arithmetic number, because the mean of its divisors is an integer number (26811715).

Almost surely, 2^53623429 is an apocalyptic number.

It is an amenable number.

53623429 is a deficient number, since it is larger than the sum of its proper divisors (1).

53623429 is an equidigital number, since it uses as much as digits as its factorization.

53623429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 34.

The square root of 53623429 is about 7322.8019910414. The cubic root of 53623429 is about 377.0956540673.

The spelling of 53623429 in words is "fifty-three million, six hundred twenty-three thousand, four hundred twenty-nine".