53151409 has 2 divisors, whose sum is σ = 53151410. Its totient is φ = 53151408.

The previous prime is 53151377. The next prime is 53151419. The reversal of 53151409 is 90415135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43560000 + 9591409 = 6600^2 + 3097^2 .

It is a cyclic number.

It is not a de Polignac number, because 53151409 - 2⁵ = 53151377 is a prime.

It is not a weakly prime, because it can be changed into another prime (53151419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26575704 + 26575705.

It is an arithmetic number, because the mean of its divisors is an integer number (26575705).

Almost surely, 2^53151409 is an apocalyptic number.

It is an amenable number.

53151409 is a deficient number, since it is larger than the sum of its proper divisors (1).

53151409 is an equidigital number, since it uses as much as digits as its factorization.

53151409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 53151409 is about 7290.5012859199. The cubic root of 53151409 is about 375.9859306075.

It can be divided in two parts, 5315 and 1409, that added together give a square (6724 = 82²).

The spelling of 53151409 in words is "fifty-three million, one hundred fifty-one thousand, four hundred nine".