51419650 has 12 divisors (see below), whose sum is σ = 95640642. Its totient is φ = 20567840.

The previous prime is 51419647. The next prime is 51419657. The reversal of 51419650 is 5691415.

It can be written as a sum of positive squares in 3 ways, for example, as 21836929 + 29582721 = 4673^2 + 5439^2 .

It is a super-2 number, since 2×51419650² = 5287960812245000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51419657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 514147 + ... + 514246.

Almost surely, 2^51419650 is an apocalyptic number.

51419650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51419650 is a deficient number, since it is larger than the sum of its proper divisors (44220992).

51419650 is a wasteful number, since it uses less digits than its factorization.

51419650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028405 (or 1028400 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 51419650 is about 7170.7496121396. The cubic root of 51419650 is about 371.8573517506.

It can be divided in two parts, 514 and 19650, that added together give a square (20164 = 142²).

The spelling of 51419650 in words is "fifty-one million, four hundred nineteen thousand, six hundred fifty".