53778803 has 8 divisors (see below), whose sum is σ = 61322688. Its totient is φ = 46721664.

The previous prime is 53778799. The next prime is 53778821. The reversal of 53778803 is 30887735.

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 53778803 - 2² = 53778799 is a prime.

It is a super-2 number, since 2×53778803² = 5784319304225618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53778863) 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, 121451 + ... + 121892.

It is an arithmetic number, because the mean of its divisors is an integer number (7665336).

Almost surely, 2^53778803 is an apocalyptic number.

53778803 is a deficient number, since it is larger than the sum of its proper divisors (7543885).

53778803 is a wasteful number, since it uses less digits than its factorization.

53778803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243373.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 53778803 is about 7333.4032345153. The cubic root of 53778803 is about 377.4595146852.

The spelling of 53778803 in words is "fifty-three million, seven hundred seventy-eight thousand, eight hundred three".