815435053 has 2 divisors, whose sum is σ = 815435054. Its totient is φ = 815435052.

The previous prime is 815435017. The next prime is 815435063. The reversal of 815435053 is 350534518.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 667033929 + 148401124 = 25827^2 + 12182^2 .

It is a cyclic number.

It is not a de Polignac number, because 815435053 - 2⁹ = 815434541 is a prime.

It is a super-2 number, since 2×815435053² = 1329868651322225618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (815435003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 407717526 + 407717527.

It is an arithmetic number, because the mean of its divisors is an integer number (407717527).

Almost surely, 2^815435053 is an apocalyptic number.

It is an amenable number.

815435053 is a deficient number, since it is larger than the sum of its proper divisors (1).

815435053 is an equidigital number, since it uses as much as digits as its factorization.

815435053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 815435053 is about 28555.8234516184. The cubic root of 815435053 is about 934.2500408099.

The spelling of 815435053 in words is "eight hundred fifteen million, four hundred thirty-five thousand, fifty-three".