51403050 has 36 divisors (see below), whose sum is σ = 138104070. Its totient is φ = 13707360.

The previous prime is 51403039. The next prime is 51403073. The reversal of 51403050 is 5030415.

It can be written as a sum of positive squares in 3 ways, for example, as 45037521 + 6365529 = 6711^2 + 2523^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 56665 + ... + 57564.

Almost surely, 2^51403050 is an apocalyptic number.

51403050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51403050 is an abundant number, since it is smaller than the sum of its proper divisors (86701020).

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

51403050 is a wasteful number, since it uses less digits than its factorization.

51403050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114247 (or 114239 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 51403050 is about 7169.5920386030. The cubic root of 51403050 is about 371.8173314054.

Adding to 51403050 its reverse (5030415), we get a palindrome (56433465).

The spelling of 51403050 in words is "fifty-one million, four hundred three thousand, fifty".