53953766 has 4 divisors (see below), whose sum is σ = 80930652. Its totient is φ = 26976882.

The previous prime is 53953741. The next prime is 53953793. The reversal of 53953766 is 66735935.

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

It is a super-2 number, since 2×53953766² = 5822017731165512, which contains 22 as substring.

It is a Curzon number.

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, 13488440 + ... + 13488443.

It is an arithmetic number, because the mean of its divisors is an integer number (20232663).

Almost surely, 2^53953766 is an apocalyptic number.

53953766 is a deficient number, since it is larger than the sum of its proper divisors (26976886).

53953766 is a wasteful number, since it uses less digits than its factorization.

53953766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26976885.

The product of its digits is 510300, while the sum is 44.

The square root of 53953766 is about 7345.3227294653. The cubic root of 53953766 is about 377.8684115938.

The spelling of 53953766 in words is "fifty-three million, nine hundred fifty-three thousand, seven hundred sixty-six".