53525545 has 8 divisors (see below), whose sum is σ = 64271880. Its totient is φ = 42792960.

The previous prime is 53525509. The next prime is 53525557. The reversal of 53525545 is 54552535.

It can be written as a sum of positive squares in 4 ways, for example, as 5583769 + 47941776 = 2363^2 + 6924^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53525545 - 2¹³ = 53517353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53525545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9705 + ... + 14185.

It is an arithmetic number, because the mean of its divisors is an integer number (8033985).

Almost surely, 2^53525545 is an apocalyptic number.

It is an amenable number.

53525545 is a deficient number, since it is larger than the sum of its proper divisors (10746335).

53525545 is a wasteful number, since it uses less digits than its factorization.

53525545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6875.

The product of its digits is 75000, while the sum is 34.

The square root of 53525545 is about 7316.1154310194. The cubic root of 53525545 is about 376.8660646637.

The spelling of 53525545 in words is "fifty-three million, five hundred twenty-five thousand, five hundred forty-five".