51261562 has 32 divisors (see below), whose sum is σ = 91010304. Its totient is φ = 21388800.

The previous prime is 51261559. The next prime is 51261577. The reversal of 51261562 is 26516215.

It is a self number, because there is not a number n which added to its sum of digits gives 51261562.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13663 + ... + 17005.

It is an arithmetic number, because the mean of its divisors is an integer number (2844072).

Almost surely, 2^51261562 is an apocalyptic number.

51261562 is a deficient number, since it is larger than the sum of its proper divisors (39748742).

51261562 is a wasteful number, since it uses less digits than its factorization.

51261562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414.

The product of its digits is 3600, while the sum is 28.

The square root of 51261562 is about 7159.7180112069. The cubic root of 51261562 is about 371.4758728573.

Adding to 51261562 its reverse (26516215), we get a palindrome (77777777).

The spelling of 51261562 in words is "fifty-one million, two hundred sixty-one thousand, five hundred sixty-two".