53066998 has 4 divisors (see below), whose sum is σ = 79600500. Its totient is φ = 26533498.

The previous prime is 53066969. The next prime is 53066999. The reversal of 53066998 is 89966035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89966035 = 5 ⋅17993207.

It is a super-2 number, since 2×53066998² = 5632212553464008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53066999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13266748 + ... + 13266751.

It is an arithmetic number, because the mean of its divisors is an integer number (19900125).

Almost surely, 2^53066998 is an apocalyptic number.

53066998 is a deficient number, since it is larger than the sum of its proper divisors (26533502).

53066998 is a wasteful number, since it uses less digits than its factorization.

53066998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26533501.

The product of its (nonzero) digits is 349920, while the sum is 46.

The square root of 53066998 is about 7284.7098775449. The cubic root of 53066998 is about 375.7867877891.

It can be divided in two parts, 530 and 66998, that added together give a triangular number (67528 = T₃₆₇).

The spelling of 53066998 in words is "fifty-three million, sixty-six thousand, nine hundred ninety-eight".