51261468 has 24 divisors (see below), whose sum is σ = 125905920. Its totient is φ = 16187760.

The previous prime is 51261451. The next prime is 51261481. The reversal of 51261468 is 86416215.

It is a zygodrome in base 2.

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, 112188 + ... + 112643.

It is an arithmetic number, because the mean of its divisors is an integer number (5246080).

Almost surely, 2^51261468 is an apocalyptic number.

It is an amenable number.

51261468 is an abundant number, since it is smaller than the sum of its proper divisors (74644452).

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

51261468 is a wasteful number, since it uses less digits than its factorization.

51261468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224857 (or 224855 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 51261468 is about 7159.7114466995. The cubic root of 51261468 is about 371.4756457947.

The spelling of 51261468 in words is "fifty-one million, two hundred sixty-one thousand, four hundred sixty-eight".