52787961 has 12 divisors (see below), whose sum is σ = 78023088. Its totient is φ = 34373304.

The previous prime is 52787957. The next prime is 52787963. The reversal of 52787961 is 16978725.

It is not a de Polignac number, because 52787961 - 2² = 52787957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52787963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67815 + ... + 68588.

It is an arithmetic number, because the mean of its divisors is an integer number (6501924).

Almost surely, 2^52787961 is an apocalyptic number.

It is an amenable number.

52787961 is a deficient number, since it is larger than the sum of its proper divisors (25235127).

52787961 is a wasteful number, since it uses less digits than its factorization.

52787961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136452 (or 136449 counting only the distinct ones).

The product of its digits is 211680, while the sum is 45.

The square root of 52787961 is about 7265.5323961841. The cubic root of 52787961 is about 375.1269756676.

It can be divided in two parts, 527 and 87961, that added together give a palindrome (88488).

The spelling of 52787961 in words is "fifty-two million, seven hundred eighty-seven thousand, nine hundred sixty-one".