51195750 has 32 divisors (see below), whose sum is σ = 127786464. Its totient is φ = 13652000.

The previous prime is 51195743. The next prime is 51195761. The reversal of 51195750 is 5759115.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33381 + ... + 34880.

It is an arithmetic number, because the mean of its divisors is an integer number (3993327).

Almost surely, 2^51195750 is an apocalyptic number.

51195750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51195750 is an abundant number, since it is smaller than the sum of its proper divisors (76590714).

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

51195750 is a wasteful number, since it uses less digits than its factorization.

51195750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68281 (or 68271 counting only the distinct ones).

The product of its (nonzero) digits is 7875, while the sum is 33.

The square root of 51195750 is about 7155.1205440579. The cubic root of 51195750 is about 371.3168320544.

The spelling of 51195750 in words is "fifty-one million, one hundred ninety-five thousand, seven hundred fifty".