51520462 has 12 divisors (see below), whose sum is σ = 89898120. Its totient is φ = 22080156.

The previous prime is 51520459. The next prime is 51520499. The reversal of 51520462 is 26402515.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 262762 + ... + 262957.

It is an arithmetic number, because the mean of its divisors is an integer number (7491510).

Almost surely, 2^51520462 is an apocalyptic number.

51520462 is a deficient number, since it is larger than the sum of its proper divisors (38377658).

51520462 is a wasteful number, since it uses less digits than its factorization.

51520462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525735 (or 525728 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 51520462 is about 7177.7755607152. The cubic root of 51520462 is about 372.1002109874.

Adding to 51520462 its reverse (26402515), we get a palindrome (77922977).

The spelling of 51520462 in words is "fifty-one million, five hundred twenty thousand, four hundred sixty-two".