53781038 has 16 divisors (see below), whose sum is σ = 85003776. Its totient is φ = 25469400.

The previous prime is 53781011. The next prime is 53781041. The reversal of 53781038 is 83018735.

It is a junction number, because it is equal to n+sod(n) for n = 53780989 and 53781007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938 + ... + 10413.

It is an arithmetic number, because the mean of its divisors is an integer number (5312736).

Almost surely, 2^53781038 is an apocalyptic number.

53781038 is a deficient number, since it is larger than the sum of its proper divisors (31222738).

53781038 is a wasteful number, since it uses less digits than its factorization.

53781038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11479.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 53781038 is about 7333.5556178432. Note that the first 3 decimals coincide. The cubic root of 53781038 is about 377.4647435752.

The spelling of 53781038 in words is "fifty-three million, seven hundred eighty-one thousand, thirty-eight".