51125235 has 16 divisors (see below), whose sum is σ = 93486336. Its totient is φ = 23371488.

The previous prime is 51125201. The next prime is 51125279. The reversal of 51125235 is 53252115.

It is a happy number.

It is not a de Polignac number, because 51125235 - 2¹⁶ = 51059699 is a prime.

It is a super-2 number, since 2×51125235² = 5227579307610450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243349 + ... + 243558.

It is an arithmetic number, because the mean of its divisors is an integer number (5842896).

Almost surely, 2^51125235 is an apocalyptic number.

51125235 is a deficient number, since it is larger than the sum of its proper divisors (42361101).

51125235 is a wasteful number, since it uses less digits than its factorization.

51125235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486922.

The product of its digits is 1500, while the sum is 24.

The square root of 51125235 is about 7150.1912561833. The cubic root of 51125235 is about 371.1462746875.

It can be divided in two parts, 51125 and 235, that added together give a triangular number (51360 = T₃₂₀).

The spelling of 51125235 in words is "fifty-one million, one hundred twenty-five thousand, two hundred thirty-five".