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55907417 = 339116487
BaseRepresentation
bin1101010101000…
…1010001011001
310220012101120002
43111101101121
5103303014132
65314142345
71246130246
oct325212131
9126171502
1055907417
1129616085
12168819b5
13b776217
1475d45cd
154d95262
hex3551459

55907417 has 4 divisors (see below), whose sum is σ = 55927296. Its totient is φ = 55887540.

The previous prime is 55907399. The next prime is 55907471. The reversal of 55907417 is 71470955.

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 55907417 - 212 = 55903321 is a prime.

It is a super-2 number, since 2×559074172 = 6251278551223778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55907497) 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, 4853 + ... + 11634.

It is an arithmetic number, because the mean of its divisors is an integer number (13981824).

Almost surely, 255907417 is an apocalyptic number.

It is an amenable number.

55907417 is a deficient number, since it is larger than the sum of its proper divisors (19879).

55907417 is a wasteful number, since it uses less digits than its factorization.

55907417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19878.

The product of its (nonzero) digits is 44100, while the sum is 38.

The square root of 55907417 is about 7477.1262527792. The cubic root of 55907417 is about 382.3752810806.

The spelling of 55907417 in words is "fifty-five million, nine hundred seven thousand, four hundred seventeen".

Divisors: 1 3391 16487 55907417