615120053 has 2 divisors, whose sum is σ = 615120054. Its totient is φ = 615120052.

The previous prime is 615120019. The next prime is 615120059. The reversal of 615120053 is 350021516.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 471671524 + 143448529 = 21718^2 + 11977^2 .

It is a cyclic number.

It is not a de Polignac number, because 615120053 - 2¹⁸ = 614857909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (615120059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307560026 + 307560027.

It is an arithmetic number, because the mean of its divisors is an integer number (307560027).

Almost surely, 2^615120053 is an apocalyptic number.

It is an amenable number.

615120053 is a deficient number, since it is larger than the sum of its proper divisors (1).

615120053 is an equidigital number, since it uses as much as digits as its factorization.

615120053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 615120053 is about 24801.6139192594. The cubic root of 615120053 is about 850.4588309400.

Adding to 615120053 its reverse (350021516), we get a palindrome (965141569).

The spelling of 615120053 in words is "six hundred fifteen million, one hundred twenty thousand, fifty-three".