53801725 has 6 divisors (see below), whose sum is σ = 66714170. Its totient is φ = 43041360.

The previous prime is 53801677. The next prime is 53801773. The reversal of 53801725 is 52710835.

It is an interprime number because it is at equal distance from previous prime (53801677) and next prime (53801773).

It can be written as a sum of positive squares in 3 ways, for example, as 3632836 + 50168889 = 1906^2 + 7083^2 .

It is not a de Polignac number, because 53801725 - 2¹¹ = 53799677 is a prime.

It is a super-2 number, since 2×53801725² = 5789251225951250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1076010 + ... + 1076059.

Almost surely, 2^53801725 is an apocalyptic number.

It is an amenable number.

53801725 is a deficient number, since it is larger than the sum of its proper divisors (12912445).

53801725 is a wasteful number, since it uses less digits than its factorization.

53801725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152079 (or 2152074 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 53801725 is about 7334.9659167579. The cubic root of 53801725 is about 377.5131349318.

The spelling of 53801725 in words is "fifty-three million, eight hundred one thousand, seven hundred twenty-five".