53023947 has 16 divisors (see below), whose sum is σ = 75575808. Its totient is φ = 32985920.

The previous prime is 53023939. The next prime is 53023979. The reversal of 53023947 is 74932035.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 53023947 - 2³ = 53023939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53023907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6543 + ... + 12200.

It is an arithmetic number, because the mean of its divisors is an integer number (4723488).

Almost surely, 2^53023947 is an apocalyptic number.

53023947 is a deficient number, since it is larger than the sum of its proper divisors (22551861).

53023947 is a wasteful number, since it uses less digits than its factorization.

53023947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18810.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 53023947 is about 7281.7543902551. The cubic root of 53023947 is about 375.6851403471.

The spelling of 53023947 in words is "fifty-three million, twenty-three thousand, nine hundred forty-seven".