52187070 has 32 divisors (see below), whose sum is σ = 134884512. Its totient is φ = 12845952.

The previous prime is 52187041. The next prime is 52187071. The reversal of 52187070 is 7078125.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52187071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66517 + ... + 67296.

It is an arithmetic number, because the mean of its divisors is an integer number (4215141).

Almost surely, 2^52187070 is an apocalyptic number.

52187070 is an abundant number, since it is smaller than the sum of its proper divisors (82697442).

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

52187070 is a wasteful number, since it uses less digits than its factorization.

52187070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133836.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 52187070 is about 7224.0618768114. The cubic root of 52187070 is about 373.6981703127.

The spelling of 52187070 in words is "fifty-two million, one hundred eighty-seven thousand, seventy".