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BaseRepresentation
bin1100011011010…
…0101101101001
310122001222210010
43012310231221
5101320323200
65101042133
71202005410
oct306645551
9118058703
1052120425
1127469935
1215556349
13aa4b5b6
146cca477
154898150
hex31b4b69

52120425 has 24 divisors (see below), whose sum is σ = 98483776. Its totient is φ = 23826240.

The previous prime is 52120381. The next prime is 52120427. The reversal of 52120425 is 52402125.

It is a happy number.

It is not a de Polignac number, because 52120425 - 27 = 52120297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52120427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49114 + ... + 50163.

Almost surely, 252120425 is an apocalyptic number.

It is an amenable number.

52120425 is a deficient number, since it is larger than the sum of its proper divisors (46363351).

52120425 is a wasteful number, since it uses less digits than its factorization.

52120425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99297 (or 99292 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 52120425 is about 7219.4476935566. The cubic root of 52120425 is about 373.5390266545.

The spelling of 52120425 in words is "fifty-two million, one hundred twenty thousand, four hundred twenty-five".