51261476 has 48 divisors (see below), whose sum is σ = 107412480. Its totient is φ = 20943360.

The previous prime is 51261451. The next prime is 51261481. The reversal of 51261476 is 67416215.

It is a plaindrome in base 15.

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, 62960 + ... + 63768.

It is an arithmetic number, because the mean of its divisors is an integer number (2237760).

Almost surely, 2^51261476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51261476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53706240).

51261476 is an abundant number, since it is smaller than the sum of its proper divisors (56151004).

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

51261476 is a wasteful number, since it uses less digits than its factorization.

51261476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924 (or 922 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 51261476 is about 7159.7120053812. The cubic root of 51261476 is about 371.4756651192.

The spelling of 51261476 in words is "fifty-one million, two hundred sixty-one thousand, four hundred seventy-six".