53733861 has 14 divisors (see below), whose sum is σ = 80565030. Its totient is φ = 35822088.

The previous prime is 53733859. The next prime is 53733877. The reversal of 53733861 is 16833735.

It can be written as a sum of positive squares in only one way, i.e., 30636225 + 23097636 = 5535^2 + 4806^2 .

It is not a de Polignac number, because 53733861 - 2¹ = 53733859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53733811) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 36126 + ... + 37583.

It is an arithmetic number, because the mean of its divisors is an integer number (5754645).

Almost surely, 2^53733861 is an apocalyptic number.

It is an amenable number.

53733861 is a deficient number, since it is larger than the sum of its proper divisors (26831169).

53733861 is an frugal number, since it uses more digits than its factorization.

53733861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73727 (or 73712 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 53733861 is about 7330.3383960087. The cubic root of 53733861 is about 377.3543399559.

The spelling of 53733861 in words is "fifty-three million, seven hundred thirty-three thousand, eight hundred sixty-one".