53680157 has 4 divisors (see below), whose sum is σ = 54822336. Its totient is φ = 52537980.

The previous prime is 53680153. The next prime is 53680241. The reversal of 53680157 is 75108635.

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 not a de Polignac number, because 53680157 - 2² = 53680153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53680153) 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, 571019 + ... + 571112.

It is an arithmetic number, because the mean of its divisors is an integer number (13705584).

Almost surely, 2^53680157 is an apocalyptic number.

It is an amenable number.

53680157 is a deficient number, since it is larger than the sum of its proper divisors (1142179).

53680157 is a wasteful number, since it uses less digits than its factorization.

53680157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142178.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 53680157 is about 7326.6743478880. The cubic root of 53680157 is about 377.2285831721.

The spelling of 53680157 in words is "fifty-three million, six hundred eighty thousand, one hundred fifty-seven".