53201778 has 32 divisors (see below), whose sum is σ = 121927680. Its totient is φ = 15160080.

The previous prime is 53201773. The next prime is 53201803. The reversal of 53201778 is 87710235.

It is a super-2 number, since 2×53201778² = 5660858364722568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53201773) 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, 16633 + ... + 19571.

It is an arithmetic number, because the mean of its divisors is an integer number (3810240).

Almost surely, 2^53201778 is an apocalyptic number.

53201778 is an abundant number, since it is smaller than the sum of its proper divisors (68725902).

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

53201778 is a wasteful number, since it uses less digits than its factorization.

53201778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 53201778 is about 7293.9548942943. The cubic root of 53201778 is about 376.1046609581.

The spelling of 53201778 in words is "fifty-three million, two hundred one thousand, seven hundred seventy-eight".