51906852 has 48 divisors (see below), whose sum is σ = 136796800. Its totient is φ = 17016480.

The previous prime is 51906851. The next prime is 51906853. The reversal of 51906852 is 25860915.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51906851) and next prime (51906853).

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

It is not an unprimeable number, because it can be changed into a prime (51906851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2649 + ... + 10527.

Almost surely, 2^51906852 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 51906852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68398400).

51906852 is an abundant number, since it is smaller than the sum of its proper divisors (84889948).

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

51906852 is a wasteful number, since it uses less digits than its factorization.

51906852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7953 (or 7945 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 51906852 is about 7204.6410042416. The cubic root of 51906852 is about 373.0281132751.

The spelling of 51906852 in words is "fifty-one million, nine hundred six thousand, eight hundred fifty-two".