51462420 has 24 divisors (see below), whose sum is σ = 144094944. Its totient is φ = 13723296.

The previous prime is 51462419. The next prime is 51462473. The reversal of 51462420 is 2426415.

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, 428794 + ... + 428913.

It is an arithmetic number, because the mean of its divisors is an integer number (6003956).

Almost surely, 2^51462420 is an apocalyptic number.

It is an amenable number.

51462420 is an abundant number, since it is smaller than the sum of its proper divisors (92632524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51462420 is a wasteful number, since it uses less digits than its factorization.

51462420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857719 (or 857717 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 51462420 is about 7173.7312467084. The cubic root of 51462420 is about 371.9604247413.

Adding to 51462420 its reverse (2426415), we get a palindrome (53888835).

The spelling of 51462420 in words is "fifty-one million, four hundred sixty-two thousand, four hundred twenty".