53761493 has 2 divisors, whose sum is σ = 53761494. Its totient is φ = 53761492.

The previous prime is 53761489. The next prime is 53761541. The reversal of 53761493 is 39416735.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44863204 + 8898289 = 6698^2 + 2983^2 .

It is a cyclic number.

It is not a de Polignac number, because 53761493 - 2² = 53761489 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53761423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26880746 + 26880747.

It is an arithmetic number, because the mean of its divisors is an integer number (26880747).

Almost surely, 2^53761493 is an apocalyptic number.

It is an amenable number.

53761493 is a deficient number, since it is larger than the sum of its proper divisors (1).

53761493 is an equidigital number, since it uses as much as digits as its factorization.

53761493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 38.

The square root of 53761493 is about 7332.2229235069. Note that the first 3 decimals coincide. The cubic root of 53761493 is about 377.4190122011.

The spelling of 53761493 in words is "fifty-three million, seven hundred sixty-one thousand, four hundred ninety-three".