53204557 has 8 divisors (see below), whose sum is σ = 62448896. Its totient is φ = 44371152.

The previous prime is 53204537. The next prime is 53204563. The reversal of 53204557 is 75540235.

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

It is not a de Polignac number, because 53204557 - 2²³ = 44815949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53204537) 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, 102453 + ... + 102970.

It is an arithmetic number, because the mean of its divisors is an integer number (7806112).

Almost surely, 2^53204557 is an apocalyptic number.

It is an amenable number.

53204557 is a deficient number, since it is larger than the sum of its proper divisors (9244339).

53204557 is a wasteful number, since it uses less digits than its factorization.

53204557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205467.

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 53204557 is about 7294.1453920250. The cubic root of 53204557 is about 376.1112094651. Note that the first 3 decimals are identical.

The spelling of 53204557 in words is "fifty-three million, two hundred four thousand, five hundred fifty-seven".