53765997 has 16 divisors (see below), whose sum is σ = 74199552. Its totient is φ = 34594560.

The previous prime is 53765993. The next prime is 53766001. The reversal of 53765997 is 79956735.

It is an interprime number because it is at equal distance from previous prime (53765993) and next prime (53766001).

It is not a de Polignac number, because 53765997 - 2² = 53765993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53765993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56913 + ... + 57849.

It is an arithmetic number, because the mean of its divisors is an integer number (4637472).

Almost surely, 2^53765997 is an apocalyptic number.

It is an amenable number.

53765997 is a deficient number, since it is larger than the sum of its proper divisors (20433555).

53765997 is a wasteful number, since it uses less digits than its factorization.

53765997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588.

The product of its digits is 1786050, while the sum is 51.

The square root of 53765997 is about 7332.5300544901. The cubic root of 53765997 is about 377.4295516390.

The spelling of 53765997 in words is "fifty-three million, seven hundred sixty-five thousand, nine hundred ninety-seven".