51948207 has 24 divisors (see below), whose sum is σ = 77316096. Its totient is φ = 33593616.

The previous prime is 51948199. The next prime is 51948229. The reversal of 51948207 is 70284915.

It is not a de Polignac number, because 51948207 - 2³ = 51948199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51948287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53238 + ... + 54204.

It is an arithmetic number, because the mean of its divisors is an integer number (3221504).

Almost surely, 2^51948207 is an apocalyptic number.

51948207 is a deficient number, since it is larger than the sum of its proper divisors (25367889).

51948207 is a wasteful number, since it uses less digits than its factorization.

51948207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147 (or 1144 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 51948207 is about 7207.5104578488. The cubic root of 51948207 is about 373.1271527531.

The spelling of 51948207 in words is "fifty-one million, nine hundred forty-eight thousand, two hundred seven".