53102647 has 4 divisors (see below), whose sum is σ = 57187480. Its totient is φ = 49017816.

The previous prime is 53102639. The next prime is 53102657. The reversal of 53102647 is 74620135.

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

It is a cyclic number.

It is not a de Polignac number, because 53102647 - 2³ = 53102639 is a prime.

It is a super-2 number, since 2×53102647² = 5639782236813218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53102657) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2042397 + ... + 2042422.

It is an arithmetic number, because the mean of its divisors is an integer number (14296870).

Almost surely, 2^53102647 is an apocalyptic number.

53102647 is a deficient number, since it is larger than the sum of its proper divisors (4084833).

53102647 is a wasteful number, since it uses less digits than its factorization.

53102647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084832.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 53102647 is about 7287.1563040736. The cubic root of 53102647 is about 375.8709168149.

The spelling of 53102647 in words is "fifty-three million, one hundred two thousand, six hundred forty-seven".