53451667501 has 2 divisors, whose sum is σ = 53451667502. Its totient is φ = 53451667500.

The previous prime is 53451667459. The next prime is 53451667513. The reversal of 53451667501 is 10576615435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28779426025 + 24672241476 = 169645^2 + 157074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53451667501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53451667541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26725833750 + 26725833751.

It is an arithmetic number, because the mean of its divisors is an integer number (26725833751).

Almost surely, 2^53451667501 is an apocalyptic number.

It is an amenable number.

53451667501 is a deficient number, since it is larger than the sum of its proper divisors (1).

53451667501 is an equidigital number, since it uses as much as digits as its factorization.

53451667501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378000, while the sum is 43.

The spelling of 53451667501 in words is "fifty-three billion, four hundred fifty-one million, six hundred sixty-seven thousand, five hundred one".