53101387 has 4 divisors (see below), whose sum is σ = 56225016. Its totient is φ = 49977760.

The previous prime is 53101381. The next prime is 53101463. The reversal of 53101387 is 78310135.

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 53101387 - 2³ = 53101379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53101381) 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, 1561789 + ... + 1561822.

It is an arithmetic number, because the mean of its divisors is an integer number (14056254).

Almost surely, 2^53101387 is an apocalyptic number.

53101387 is a deficient number, since it is larger than the sum of its proper divisors (3123629).

53101387 is a wasteful number, since it uses less digits than its factorization.

53101387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123628.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 53101387 is about 7287.0698500838. The cubic root of 53101387 is about 375.8679439493.

The spelling of 53101387 in words is "fifty-three million, one hundred one thousand, three hundred eighty-seven".