53501123 has 4 divisors (see below), whose sum is σ = 57616608. Its totient is φ = 49385640.

The previous prime is 53501099. The next prime is 53501137. The reversal of 53501123 is 32110535.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53501123 is a prime.

It is a super-2 number, since 2×53501123² = 5724740324522258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53501095 and 53501104.

It is not an unprimeable number, because it can be changed into a prime (53501153) 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, 2057723 + ... + 2057748.

It is an arithmetic number, because the mean of its divisors is an integer number (14404152).

Almost surely, 2^53501123 is an apocalyptic number.

53501123 is a deficient number, since it is larger than the sum of its proper divisors (4115485).

53501123 is a wasteful number, since it uses less digits than its factorization.

53501123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115484.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 53501123 is about 7314.4461854607. The cubic root of 53501123 is about 376.8087386200.

Adding to 53501123 its reverse (32110535), we get a palindrome (85611658).

The spelling of 53501123 in words is "fifty-three million, five hundred one thousand, one hundred twenty-three".