51949229 has 8 divisors (see below), whose sum is σ = 55427328. Its totient is φ = 48518080.

The previous prime is 51949213. The next prime is 51949243. The reversal of 51949229 is 92294915.

51949229 = T₃₀₅ + T₃₀₆ + ... + T₆₉₇.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51949229 - 2⁴ = 51949213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51942229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9437 + ... + 13890.

It is an arithmetic number, because the mean of its divisors is an integer number (6928416).

Almost surely, 2^51949229 is an apocalyptic number.

It is an amenable number.

51949229 is a deficient number, since it is larger than the sum of its proper divisors (3478099).

51949229 is a wasteful number, since it uses less digits than its factorization.

51949229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23475.

The product of its digits is 58320, while the sum is 41.

The square root of 51949229 is about 7207.5813557670. The cubic root of 51949229 is about 373.1295996354.

The spelling of 51949229 in words is "fifty-one million, nine hundred forty-nine thousand, two hundred twenty-nine".