51610722 has 32 divisors (see below), whose sum is σ = 108380160. Its totient is φ = 16362960.

The previous prime is 51610717. The next prime is 51610723. The reversal of 51610722 is 22701615.

It is a super-2 number, since 2×51610722² = 5327333250722568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51610692 and 51610701.

It is not an unprimeable number, because it can be changed into a prime (51610723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8623 + ... + 13325.

It is an arithmetic number, because the mean of its divisors is an integer number (3386880).

Almost surely, 2^51610722 is an apocalyptic number.

51610722 is an abundant number, since it is smaller than the sum of its proper divisors (56769438).

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

51610722 is a wasteful number, since it uses less digits than its factorization.

51610722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4798.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 51610722 is about 7184.0602725757. The cubic root of 51610722 is about 372.3173814705.

The spelling of 51610722 in words is "fifty-one million, six hundred ten thousand, seven hundred twenty-two".