53278350 has 48 divisors (see below), whose sum is σ = 137884032. Its totient is φ = 13588960.

The previous prime is 53278349. The next prime is 53278361. The reversal of 53278350 is 5387235.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4272 + ... + 11171.

It is an arithmetic number, because the mean of its divisors is an integer number (2872584).

Almost surely, 2^53278350 is an apocalyptic number.

53278350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53278350 is an abundant number, since it is smaller than the sum of its proper divisors (84605682).

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

53278350 is a wasteful number, since it uses less digits than its factorization.

53278350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15481 (or 15476 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 53278350 is about 7299.2020111790. The cubic root of 53278350 is about 376.2850138311.

It can be divided in two parts, 53278 and 350, that added together give a triangular number (53628 = T₃₂₇).

The spelling of 53278350 in words is "fifty-three million, two hundred seventy-eight thousand, three hundred fifty".