52020130 has 16 divisors (see below), whose sum is σ = 94603320. Its totient is φ = 20593152.

The previous prime is 52020127. The next prime is 52020131. The reversal of 52020130 is 3102025.

It can be written as a sum of positive squares in 4 ways, for example, as 49688401 + 2331729 = 7049^2 + 1527^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52020130.

It is not an unprimeable number, because it can be changed into a prime (52020131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25845 + ... + 27784.

Almost surely, 2^52020130 is an apocalyptic number.

52020130 is a deficient number, since it is larger than the sum of its proper divisors (42583190).

52020130 is a wasteful number, since it uses less digits than its factorization.

52020130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53733.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 52020130 is about 7212.4981802424. The cubic root of 52020130 is about 373.2992732178.

Adding to 52020130 its reverse (3102025), we get a palindrome (55122155).

It can be divided in two parts, 520 and 20130, that multiplied together give a triangular number (10467600 = T₄₅₇₅).

The spelling of 52020130 in words is "fifty-two million, twenty thousand, one hundred thirty".