52071398 has 4 divisors (see below), whose sum is σ = 78107100. Its totient is φ = 26035698.

The previous prime is 52071389. The next prime is 52071401. The reversal of 52071398 is 89317025.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×52071398² = 5422860979348808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13017848 + ... + 13017851.

It is an arithmetic number, because the mean of its divisors is an integer number (19526775).

Almost surely, 2^52071398 is an apocalyptic number.

52071398 is a deficient number, since it is larger than the sum of its proper divisors (26035702).

52071398 is a wasteful number, since it uses less digits than its factorization.

52071398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26035701.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 52071398 is about 7216.0514133423. The cubic root of 52071398 is about 373.4218669354.

The spelling of 52071398 in words is "fifty-two million, seventy-one thousand, three hundred ninety-eight".