53551761 has 8 divisors (see below), whose sum is σ = 71628864. Its totient is φ = 35587920.

The previous prime is 53551733. The next prime is 53551769. The reversal of 53551761 is 16715535.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53551761 - 2⁹ = 53551249 is a prime.

It is a super-2 number, since 2×53551761² = 5735582212402242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53551769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27205 + ... + 29106.

It is an arithmetic number, because the mean of its divisors is an integer number (8953608).

Almost surely, 2^53551761 is an apocalyptic number.

It is an amenable number.

53551761 is a deficient number, since it is larger than the sum of its proper divisors (18077103).

53551761 is a wasteful number, since it uses less digits than its factorization.

53551761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56631.

The product of its digits is 15750, while the sum is 33.

The square root of 53551761 is about 7317.9068728701. The cubic root of 53551761 is about 376.9275823819.

The spelling of 53551761 in words is "fifty-three million, five hundred fifty-one thousand, seven hundred sixty-one".