53992986 has 16 divisors (see below), whose sum is σ = 114338304. Its totient is φ = 16938944.

The previous prime is 53992963. The next prime is 53992987. The reversal of 53992986 is 68929935.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (53992987) 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, 264570 + ... + 264773.

It is an arithmetic number, because the mean of its divisors is an integer number (7146144).

Almost surely, 2^53992986 is an apocalyptic number.

53992986 is an abundant number, since it is smaller than the sum of its proper divisors (60345318).

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

53992986 is a wasteful number, since it uses less digits than its factorization.

53992986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529365.

The product of its digits is 1049760, while the sum is 51.

The square root of 53992986 is about 7347.9919705999. The cubic root of 53992986 is about 377.9599492853.

It can be divided in two parts, 5399 and 2986, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 53992986 in words is "fifty-three million, nine hundred ninety-two thousand, nine hundred eighty-six".