51652535 has 16 divisors (see below), whose sum is σ = 67796352. Its totient is φ = 37466400.

The previous prime is 51652499. The next prime is 51652547. The reversal of 51652535 is 53525615.

It is not a de Polignac number, because 51652535 - 2¹² = 51648439 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 24680 + ... + 26690.

It is an arithmetic number, because the mean of its divisors is an integer number (4237272).

Almost surely, 2^51652535 is an apocalyptic number.

51652535 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51652535 is a deficient number, since it is larger than the sum of its proper divisors (16143817).

51652535 is a wasteful number, since it uses less digits than its factorization.

51652535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2494.

The product of its digits is 22500, while the sum is 32.

The square root of 51652535 is about 7186.9698065318. The cubic root of 51652535 is about 372.4179000181.

Subtracting 51652535 from its reverse (53525615), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 51652535 in words is "fifty-one million, six hundred fifty-two thousand, five hundred thirty-five".