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5215525 = 52729803
BaseRepresentation
bin10011111001010100100101
3100210222100121
4103321110211
52313344100
6303441541
762221420
oct23712445
910728317
105215525
112a42557
1218b62b1
131107c13
1499a9b7
156d051a
hex4f9525

5215525 has 12 divisors (see below), whose sum is σ = 7391392. Its totient is φ = 3576240.

The previous prime is 5215517. The next prime is 5215537. The reversal of 5215525 is 5255125.

It is a happy number.

5215525 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5215525 - 23 = 5215517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5215525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14727 + ... + 15076.

Almost surely, 25215525 is an apocalyptic number.

It is an amenable number.

5215525 is a deficient number, since it is larger than the sum of its proper divisors (2175867).

5215525 is a wasteful number, since it uses less digits than its factorization.

5215525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29820 (or 29815 counting only the distinct ones).

The product of its digits is 2500, while the sum is 25.

The square root of 5215525 is about 2283.7523946348. The cubic root of 5215525 is about 173.4200646651.

The spelling of 5215525 in words is "five million, two hundred fifteen thousand, five hundred twenty-five".

Divisors: 1 5 7 25 35 175 29803 149015 208621 745075 1043105 5215525