53299830 has 32 divisors (see below), whose sum is σ = 128127744. Its totient is φ = 14190176.

The previous prime is 53299817. The next prime is 53299837. The reversal of 53299830 is 3899235.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53299837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25609 + ... + 27611.

It is an arithmetic number, because the mean of its divisors is an integer number (4003992).

Almost surely, 2^53299830 is an apocalyptic number.

53299830 is an abundant number, since it is smaller than the sum of its proper divisors (74827914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53299830 is a wasteful number, since it uses less digits than its factorization.

53299830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 53299830 is about 7300.6732566250. The cubic root of 53299830 is about 376.3355754328.

It can be divided in two parts, 532998 and 30, that added together give a triangular number (533028 = T₁₀₃₂).

The spelling of 53299830 in words is "fifty-three million, two hundred ninety-nine thousand, eight hundred thirty".