51241950 has 48 divisors (see below), whose sum is σ = 141203760. Its totient is φ = 13664160.

The previous prime is 51241921. The next prime is 51241951. The reversal of 51241950 is 5914215.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51241951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17629 + ... + 20328.

It is an arithmetic number, because the mean of its divisors is an integer number (2941745).

Almost surely, 2^51241950 is an apocalyptic number.

51241950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51241950 is an abundant number, since it is smaller than the sum of its proper divisors (89961810).

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

51241950 is a wasteful number, since it uses less digits than its factorization.

51241950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37978 (or 37967 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 27.

The square root of 51241950 is about 7158.3482731703. The cubic root of 51241950 is about 371.4284928853.

The spelling of 51241950 in words is "fifty-one million, two hundred forty-one thousand, nine hundred fifty".