52581470 has 16 divisors (see below), whose sum is σ = 94776480. Its totient is φ = 21003744.

The previous prime is 52581461. The next prime is 52581481. The reversal of 52581470 is 7418525.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 5036 + ... + 11424.

It is an arithmetic number, because the mean of its divisors is an integer number (5923530).

Almost surely, 2^52581470 is an apocalyptic number.

52581470 is a deficient number, since it is larger than the sum of its proper divisors (42195010).

52581470 is a wasteful number, since it uses less digits than its factorization.

52581470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7219.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 52581470 is about 7251.3081578430. The cubic root of 52581470 is about 374.6372076496.

Adding to 52581470 its reverse (7418525), we get a palindrome (59999995).

The spelling of 52581470 in words is "fifty-two million, five hundred eighty-one thousand, four hundred seventy".