52645557 has 8 divisors (see below), whose sum is σ = 70233376. Its totient is φ = 35077392.

The previous prime is 52645531. The next prime is 52645609. The reversal of 52645557 is 75554625.

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

It is not a de Polignac number, because 52645557 - 2⁷ = 52645429 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 (52645507) 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, 3303 + ... + 10779.

It is an arithmetic number, because the mean of its divisors is an integer number (8779172).

Almost surely, 2^52645557 is an apocalyptic number.

It is an amenable number.

52645557 is a deficient number, since it is larger than the sum of its proper divisors (17587819).

52645557 is a wasteful number, since it uses less digits than its factorization.

52645557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9827.

The product of its digits is 210000, while the sum is 39.

The square root of 52645557 is about 7255.7258079395. The cubic root of 52645557 is about 374.7893501376.

The spelling of 52645557 in words is "fifty-two million, six hundred forty-five thousand, five hundred fifty-seven".