52151405 has 4 divisors (see below), whose sum is σ = 62581692. Its totient is φ = 41721120.

The previous prime is 52151399. The next prime is 52151423. The reversal of 52151405 is 50415125.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23785129 + 28366276 = 4877^2 + 5326^2 .

It is not a de Polignac number, because 52151405 - 2⁸ = 52151149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5215136 + ... + 5215145.

It is an arithmetic number, because the mean of its divisors is an integer number (15645423).

Almost surely, 2^52151405 is an apocalyptic number.

It is an amenable number.

52151405 is a deficient number, since it is larger than the sum of its proper divisors (10430287).

52151405 is a wasteful number, since it uses less digits than its factorization.

52151405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10430286.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 52151405 is about 7221.5929683138. The cubic root of 52151405 is about 373.6130216189.

The spelling of 52151405 in words is "fifty-two million, one hundred fifty-one thousand, four hundred five".