52387961 has 4 divisors (see below), whose sum is σ = 52409232. Its totient is φ = 52366692.

The previous prime is 52387957. The next prime is 52387991. The reversal of 52387961 is 16978325.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52387961 - 2² = 52387957 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52387991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6371 + ... + 12056.

It is an arithmetic number, because the mean of its divisors is an integer number (13102308).

Almost surely, 2^52387961 is an apocalyptic number.

It is an amenable number.

52387961 is a deficient number, since it is larger than the sum of its proper divisors (21271).

52387961 is a wasteful number, since it uses less digits than its factorization.

52387961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21270.

The product of its digits is 90720, while the sum is 41.

The square root of 52387961 is about 7237.9528183044. The cubic root of 52387961 is about 374.1770659182.

The spelling of 52387961 in words is "fifty-two million, three hundred eighty-seven thousand, nine hundred sixty-one".