53942669 has 4 divisors (see below), whose sum is σ = 58846560. Its totient is φ = 49038780.

The previous prime is 53942641. The next prime is 53942671. The reversal of 53942669 is 96624935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53942669 is a prime.

It is a super-2 number, since 2×53942669² = 5819623077687122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53342669) 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, 2451929 + ... + 2451950.

It is an arithmetic number, because the mean of its divisors is an integer number (14711640).

Almost surely, 2^53942669 is an apocalyptic number.

It is an amenable number.

53942669 is a deficient number, since it is larger than the sum of its proper divisors (4903891).

53942669 is a wasteful number, since it uses less digits than its factorization.

53942669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4903890.

The product of its digits is 349920, while the sum is 44.

The square root of 53942669 is about 7344.5673119660. The cubic root of 53942669 is about 377.8425036508.

The spelling of 53942669 in words is "fifty-three million, nine hundred forty-two thousand, six hundred sixty-nine".