53661527 has 8 divisors (see below), whose sum is σ = 55685760. Its totient is φ = 51655680.

The previous prime is 53661511. The next prime is 53661539. The reversal of 53661527 is 72516635.

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

It is a cyclic number.

It is not a de Polignac number, because 53661527 - 2⁴ = 53661511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53661547) 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, 1499 + ... + 10467.

It is an arithmetic number, because the mean of its divisors is an integer number (6960720).

Almost surely, 2^53661527 is an apocalyptic number.

53661527 is a deficient number, since it is larger than the sum of its proper divisors (2024233).

53661527 is a wasteful number, since it uses less digits than its factorization.

53661527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9193.

The product of its digits is 37800, while the sum is 35.

The square root of 53661527 is about 7325.4028558162. The cubic root of 53661527 is about 377.1849383564.

The spelling of 53661527 in words is "fifty-three million, six hundred sixty-one thousand, five hundred twenty-seven".