51485208 has 32 divisors (see below), whose sum is σ = 133153200. Its totient is φ = 16569728.

The previous prime is 51485171. The next prime is 51485209. The reversal of 51485208 is 80258415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51485209) 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, 36291 + ... + 37682.

Almost surely, 2^51485208 is an apocalyptic number.

51485208 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

51485208 is an abundant number, since it is smaller than the sum of its proper divisors (81667992).

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

51485208 is a wasteful number, since it uses less digits than its factorization.

51485208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74011 (or 74007 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 51485208 is about 7175.3193657147. The cubic root of 51485208 is about 372.0153190593.

The spelling of 51485208 in words is "fifty-one million, four hundred eighty-five thousand, two hundred eight".