52771290 has 64 divisors (see below), whose sum is σ = 148804992. Its totient is φ = 11808000.

The previous prime is 52771267. The next prime is 52771291. The reversal of 52771290 is 9217725.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52771291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1861 + ... + 10440.

It is an arithmetic number, because the mean of its divisors is an integer number (2325078).

Almost surely, 2^52771290 is an apocalyptic number.

52771290 is an abundant number, since it is smaller than the sum of its proper divisors (96033702).

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

52771290 is a wasteful number, since it uses less digits than its factorization.

52771290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12335.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 52771290 is about 7264.3850393547. The cubic root of 52771290 is about 375.0874818125.

It can be divided in two parts, 527 and 71290, that added together give a palindrome (71817).

The spelling of 52771290 in words is "fifty-two million, seven hundred seventy-one thousand, two hundred ninety".