55753493 has 2 divisors, whose sum is σ = 55753494. Its totient is φ = 55753492.

The previous prime is 55753483. The next prime is 55753501. The reversal of 55753493 is 39435755.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48344209 + 7409284 = 6953^2 + 2722^2 .

It is a cyclic number.

It is not a de Polignac number, because 55753493 - 2²⁰ = 54704917 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 55753493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55753433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27876746 + 27876747.

It is an arithmetic number, because the mean of its divisors is an integer number (27876747).

Almost surely, 2^55753493 is an apocalyptic number.

It is an amenable number.

55753493 is a deficient number, since it is larger than the sum of its proper divisors (1).

55753493 is an equidigital number, since it uses as much as digits as its factorization.

55753493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 283500, while the sum is 41.

The square root of 55753493 is about 7466.8261664512. The cubic root of 55753493 is about 382.0240406825.

The spelling of 55753493 in words is "fifty-five million, seven hundred fifty-three thousand, four hundred ninety-three".