51901848 has 48 divisors (see below), whose sum is σ = 141902280. Its totient is φ = 17136384.

The previous prime is 51901847. The next prime is 51901849. The reversal of 51901848 is 84810915.

It is an interprime number because it is at equal distance from previous prime (51901847) and next prime (51901849).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51901841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4336 + ... + 11072.

Almost surely, 2^51901848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51901848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70951140).

51901848 is an abundant number, since it is smaller than the sum of its proper divisors (90000432).

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

51901848 is a wasteful number, since it uses less digits than its factorization.

51901848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6856 (or 6849 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 51901848 is about 7204.2937197202. The cubic root of 51901848 is about 373.0161258233.

The spelling of 51901848 in words is "fifty-one million, nine hundred one thousand, eight hundred forty-eight".