51956469 has 12 divisors (see below), whose sum is σ = 78998400. Its totient is φ = 32814504.

The previous prime is 51956459. The next prime is 51956501. The reversal of 51956469 is 96465915.

It is a happy number.

It is not a de Polignac number, because 51956469 - 2⁴ = 51956453 is a prime.

It is a super-2 number, since 2×51956469² = 5398949341895922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51956459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151749 + ... + 152090.

It is an arithmetic number, because the mean of its divisors is an integer number (6583200).

Almost surely, 2^51956469 is an apocalyptic number.

It is an amenable number.

51956469 is a deficient number, since it is larger than the sum of its proper divisors (27041931).

51956469 is a wasteful number, since it uses less digits than its factorization.

51956469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303864 (or 303861 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 51956469 is about 7208.0835871957. The cubic root of 51956469 is about 373.1469327949.

It can be divided in two parts, 51956 and 469, that added together give a palindrome (52425).

The spelling of 51956469 in words is "fifty-one million, nine hundred fifty-six thousand, four hundred sixty-nine".