51606262 has 4 divisors (see below), whose sum is σ = 77409396. Its totient is φ = 25803130.

The previous prime is 51606251. The next prime is 51606263. The reversal of 51606262 is 26260615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26260615 = 5 ⋅5252123.

It is a super-2 number, since 2×51606262² = 5326412555225288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51606262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51606263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12901564 + ... + 12901567.

It is an arithmetic number, because the mean of its divisors is an integer number (19352349).

Almost surely, 2^51606262 is an apocalyptic number.

51606262 is a deficient number, since it is larger than the sum of its proper divisors (25803134).

51606262 is a wasteful number, since it uses less digits than its factorization.

51606262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25803133.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 51606262 is about 7183.7498564468. The cubic root of 51606262 is about 372.3066564164.

Adding to 51606262 its reverse (26260615), we get a palindrome (77866877).

The spelling of 51606262 in words is "fifty-one million, six hundred six thousand, two hundred sixty-two".