52011550 has 48 divisors (see below), whose sum is σ = 103854960. Its totient is φ = 19319040.

The previous prime is 52011541. The next prime is 52011571. The reversal of 52011550 is 5511025.

52011550 = T₁₁₄₀ + T₁₁₄₁ + ... + T₁₂₁₄.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49834 + ... + 50866.

It is an arithmetic number, because the mean of its divisors is an integer number (2163645).

Almost surely, 2^52011550 is an apocalyptic number.

52011550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52011550 is a deficient number, since it is larger than the sum of its proper divisors (51843410).

52011550 is a wasteful number, since it uses less digits than its factorization.

52011550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117 (or 1112 counting only the distinct ones).

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 52011550 is about 7211.9033548710. The cubic root of 52011550 is about 373.2787485743.

Adding to 52011550 its reverse (5511025), we get a palindrome (57522575).

The spelling of 52011550 in words is "fifty-two million, eleven thousand, five hundred fifty".