52402557 has 8 divisors (see below), whose sum is σ = 70142976. Its totient is φ = 34798592.

The previous prime is 52402543. The next prime is 52402607. The reversal of 52402557 is 75520425.

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 52402557 - 2⁴ = 52402541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52402157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33213 + ... + 34754.

It is an arithmetic number, because the mean of its divisors is an integer number (8767872).

Almost surely, 2^52402557 is an apocalyptic number.

It is an amenable number.

52402557 is a deficient number, since it is larger than the sum of its proper divisors (17740419).

52402557 is a wasteful number, since it uses less digits than its factorization.

52402557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68227.

The product of its (nonzero) digits is 14000, while the sum is 30.

The square root of 52402557 is about 7238.9610442383. The cubic root of 52402557 is about 374.2118129683.

The spelling of 52402557 in words is "fifty-two million, four hundred two thousand, five hundred fifty-seven".