51029250 has 64 divisors (see below), whose sum is σ = 134110080. Its totient is φ = 12888000.

The previous prime is 51029227. The next prime is 51029273. The reversal of 51029250 is 5292015.

It is an interprime number because it is at equal distance from previous prime (51029227) and next prime (51029273).

It is a self number, because there is not a number n which added to its sum of digits gives 51029250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12460 + ... + 16040.

It is an arithmetic number, because the mean of its divisors is an integer number (2095470).

Almost surely, 2^51029250 is an apocalyptic number.

51029250 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 51029250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67055040).

51029250 is an abundant number, since it is smaller than the sum of its proper divisors (83080830).

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

51029250 is a wasteful number, since it uses less digits than its factorization.

51029250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3620 (or 3610 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 51029250 is about 7143.4760446158. The cubic root of 51029250 is about 370.9138598287.

The spelling of 51029250 in words is "fifty-one million, twenty-nine thousand, two hundred fifty".