52403505 has 64 divisors (see below), whose sum is σ = 106444800. Its totient is φ = 21381120.

The previous prime is 52403497. The next prime is 52403513. The reversal of 52403505 is 50530425.

It is an interprime number because it is at equal distance from previous prime (52403497) and next prime (52403513).

It is not a de Polignac number, because 52403505 - 2³ = 52403497 is a prime.

It is a super-2 number, since 2×52403505² = 5492254672570050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 67761 + ... + 68529.

It is an arithmetic number, because the mean of its divisors is an integer number (1663200).

Almost surely, 2^52403505 is an apocalyptic number.

52403505 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

52403505 is an abundant number, since it is smaller than the sum of its proper divisors (54041295).

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

52403505 is a wasteful number, since it uses less digits than its factorization.

52403505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 854.

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 52403505 is about 7239.0265229518. The cubic root of 52403505 is about 374.2140695418.

Subtracting from 52403505 its reverse (50530425), we obtain a triangular number (1873080 = T₁₉₃₅).

The spelling of 52403505 in words is "fifty-two million, four hundred three thousand, five hundred five".