53951761 has 4 divisors (see below), whose sum is σ = 57125412. Its totient is φ = 50778112.

The previous prime is 53951747. The next prime is 53951789. The reversal of 53951761 is 16715935.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 33872400 + 20079361 = 5820^2 + 4481^2 .

It is a cyclic number.

It is not a de Polignac number, because 53951761 - 2²³ = 45563153 is a prime.

It is a super-2 number, since 2×53951761² = 5821585030002242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53951761.

It is not an unprimeable number, because it can be changed into a prime (53951701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1586800 + ... + 1586833.

It is an arithmetic number, because the mean of its divisors is an integer number (14281353).

Almost surely, 2^53951761 is an apocalyptic number.

It is an amenable number.

53951761 is a deficient number, since it is larger than the sum of its proper divisors (3173651).

53951761 is a wasteful number, since it uses less digits than its factorization.

53951761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173650.

The product of its digits is 28350, while the sum is 37.

The square root of 53951761 is about 7345.1862467878. The cubic root of 53951761 is about 377.8637308235.

The spelling of 53951761 in words is "fifty-three million, nine hundred fifty-one thousand, seven hundred sixty-one".